Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 81
Filter
1.
JAMA Neurol ; 2024 Mar 04.
Article in English | MEDLINE | ID: mdl-38436973

ABSTRACT

Importance: Stroke is a leading cause of death and disability in the US. Accurate and updated measures of stroke burden are needed to guide public health policies. Objective: To present burden estimates of ischemic and hemorrhagic stroke in the US in 2019 and describe trends from 1990 to 2019 by age, sex, and geographic location. Design, Setting, and Participants: An in-depth cross-sectional analysis of the 2019 Global Burden of Disease study was conducted. The setting included the time period of 1990 to 2019 in the US. The study encompassed estimates for various types of strokes, including all strokes, ischemic strokes, intracerebral hemorrhages (ICHs), and subarachnoid hemorrhages (SAHs). The 2019 Global Burden of Disease results were released on October 20, 2020. Exposures: In this study, no particular exposure was specifically targeted. Main Outcomes and Measures: The primary focus of this analysis centered on both overall and age-standardized estimates, stroke incidence, prevalence, mortality, and DALYs per 100 000 individuals. Results: In 2019, the US recorded 7.09 million prevalent strokes (4.07 million women [57.4%]; 3.02 million men [42.6%]), with 5.87 million being ischemic strokes (82.7%). Prevalence also included 0.66 million ICHs and 0.85 million SAHs. Although the absolute numbers of stroke cases, mortality, and DALYs surged from 1990 to 2019, the age-standardized rates either declined or remained steady. Notably, hemorrhagic strokes manifested a substantial increase, especially in mortality, compared with ischemic strokes (incidence of ischemic stroke increased by 13% [95% uncertainty interval (UI), 14.2%-11.9%]; incidence of ICH increased by 39.8% [95% UI, 38.9%-39.7%]; incidence of SAH increased by 50.9% [95% UI, 49.2%-52.6%]). The downturn in stroke mortality plateaued in the recent decade. There was a discernible heterogeneity in stroke burden trends, with older adults (50-74 years) experiencing a decrease in incidence in coastal areas (decreases up to 3.9% in Vermont), in contrast to an uptick observed in younger demographics (15-49 years) in the South and Midwest US (with increases up to 8.4% in Minnesota). Conclusions and Relevance: In this cross-sectional study, the declining age-standardized stroke rates over the past 3 decades suggest progress in managing stroke-related outcomes. However, the increasing absolute burden of stroke, coupled with a notable rise in hemorrhagic stroke, suggests an evolving and substantial public health challenge in the US. Moreover, the significant disparities in stroke burden trends across different age groups and geographic locations underscore the necessity for region- and demography-specific interventions and policies to effectively mitigate the multifaceted and escalating burden of stroke in the country.

2.
Transplantation ; 108(6): 1422-1429, 2024 Jun 01.
Article in English | MEDLINE | ID: mdl-38361237

ABSTRACT

BACKGROUND: Uncontrolled donation after circulatory death (uDCD) is a potential additional source of donor kidneys. This study reviewed uDCD kidney transplant outcomes to determine if these are comparable to controlled donation after circulatory death (cDCD). METHODS: MEDLINE, Cochrane, and Embase databases were searched. Data on demographic information and transplant outcomes were extracted from included studies. Meta-analyses were performed, and risk ratios (RR) were estimated to compare transplant outcomes from uDCD to cDCD. RESULTS: Nine cohort studies were included, from 2178 uDCD kidney transplants. There was a moderate degree of bias, as 4 studies did not account for potential confounding factors. The median incidence of primary nonfunction in uDCD was 12.3% versus 5.7% for cDCD (RR, 1.85; 95% confidence intervals, 1.06-3.23; P = 0.03, I 2 = 75). The median rate of delayed graft function was 65.1% for uDCD and 52.0% for cDCD. The median 1-y graft survival for uDCD was 82.7% compared with 87.5% for cDCD (RR, 1.43; 95% confidence intervals, 1.02-2.01; P = 0.04; I 2 = 71%). The median 5-y graft survival for uDCD and cDCD was 70% each. Notably, the use of normothermic regional perfusion improved primary nonfunction rates in uDCD grafts. CONCLUSIONS: Although uDCD outcomes may be inferior in the short-term, the long-term outcomes are comparable to cDCD.


Subject(s)
Graft Survival , Kidney Transplantation , Tissue Donors , Humans , Kidney Transplantation/adverse effects , Kidney Transplantation/methods , Tissue Donors/supply & distribution , Treatment Outcome , Delayed Graft Function/etiology , Risk Factors , Tissue and Organ Procurement/methods
4.
Neurology ; 101(18): 773-774, 2023 Oct 31.
Article in English | MEDLINE | ID: mdl-37491330
5.
Pediatr Neurol ; 141: 93-100, 2023 04.
Article in English | MEDLINE | ID: mdl-36805967

ABSTRACT

Neurological morbidity is common after pediatric stroke, with moderate to severe deficits that can significantly impact education and social function. Care and recovery occur in phases distinguished by the time interval after stroke onset. These phases include the hyperacute and acute periods in which the focus is on cerebral reperfusion and prevention of neurological deterioration, followed by the subacute and chronic phases in which the focus is on secondary stroke prevention and mitigation of disability through rehabilitation, adaptation, and reintegration into the community. In this article, a multidisciplinary group of pediatric stroke experts review the stages of recovery after pediatric stroke with an emphasis on critical assessment time points. Our goal is to encourage increased standardization of outcome assessment to facilitate future clinical trials comparing various treatment and intervention options and advance optimized care for children with stroke.


Subject(s)
Stroke Rehabilitation , Stroke , Humans , Child , Stroke/diagnosis , Stroke/therapy , Outcome Assessment, Health Care
6.
Pediatr Neurol ; 138: 95-97, 2023 01.
Article in English | MEDLINE | ID: mdl-36434915

ABSTRACT

BACKGROUND: Cockayne syndrome is a rare DNA repair disorder marked by premature aging, poor growth, and intellectual disability. Neurological complications such as seizures, movement disorder, and stroke have been reported. Hemiplegic migraine has not been reported in association with Cockayne syndrome. METHODS: We report a male with Cockayne syndrome due to biallelic heterozygous pathogenic variants in ERCC6 who presented repeatedly with transient focal neurological deficits and headache, which were consistent with hemiplegic migraine. Two siblings also had Cockayne syndrome and presented with similar symptoms. RESULTS: Our patient was originally diagnosed based on clinical suspicion and then confirmed by targeted exome analysis of genes associated with Cockayne syndrome. The family's research exome sequencing data were reanalyzed to identify variants in genes known to cause familial hemiplegic migraine. No variants in the genes known to cause familial hemiplegic migraine were identified. CONCLUSION: This is a novel association of familial hemiplegic migraine in three full siblings with Cockayne syndrome. Hemiplegic migraine has not previously been described as part of the Cockayne syndrome presentation. A separate genetic cause of familial hemiplegic migraines was not identified in an exome-based analysis of genes known to cause this condition. This report may represent an expansion of the Cockayne syndrome phenotype.


Subject(s)
Cockayne Syndrome , Migraine with Aura , Male , Humans , Migraine with Aura/diagnosis , Cockayne Syndrome/genetics , Hemiplegia/genetics , Siblings , Phenotype
7.
Semin Pediatr Neurol ; 43: 100989, 2022 10.
Article in English | MEDLINE | ID: mdl-36344022

ABSTRACT

Pediatric stroke is unfortunately not a rare condition. It is associated with severe disability and mortality because of the complexity of potential clinical manifestations, and the resulting delay in seeking care and in diagnosis. Neuroimaging plays an important role in the multidisciplinary response for pediatric stroke patients. The rapid development of adult endovascular thrombectomy has created a new momentum in health professionals caring for pediatric stroke patients. Neuroimaging is critical to make decisions of identifying appropriate candidates for thrombectomy. This review article will review current neuroimaging techniques, imaging work-up strategies and special considerations in pediatric stroke. For resources limited areas, recommendation of substitute imaging approaches will be provided. Finally, promising new techniques and hypothesis-driven research protocols will be discussed.


Subject(s)
Neuroimaging , Stroke , Adult , Humans , Child , Neuroimaging/methods , Stroke/diagnostic imaging , Stroke/therapy , Stroke/etiology , Thrombectomy/adverse effects , Thrombectomy/methods , Treatment Outcome
8.
Children (Basel) ; 9(7)2022 Jul 21.
Article in English | MEDLINE | ID: mdl-35884073

ABSTRACT

The incidence and severity of urinary tract infections (UTIs) due to spina bifida is poorly understood in Malaysia. Tethering of the spinal cord is a pathological fixation of the cord in the vertebral column that can result in neurogenic bladder dysfunction and other neurological problems. It occurs in patients with spina bifida, and the authors of this study sought to investigate the impact of untethering on the urological manifestations of children with a tethered cord, thereby consolidating a previously known understanding that untethering improves bladder and bowel function. Demographic and clinical data were collected via an online questionnaire and convenient sampling techniques were used. A total of 49 individuals affected by spina bifida participated in this study. UTIs were reported based on patients' observation of cloudy and smelly urine (67%) as well as urine validation (60%). UTI is defined as the combination of symptoms and factoring in urine culture results that eventually affects the UTI diagnosis in spina bifida individuals irrespective of CISC status. Furthermore, 18% of the respondents reported being prescribed antibiotics even though they had no history of UTI. Therefore, indiscriminate prescription of antibiotics by healthcare workers further compounds the severity of future UTIs. Employing CISC (73%) including stringent usage of sterile catheters (71%) did not prevent patients from getting UTI. Overall, 33% of our respondents reported manageable control of UTI (0-35 years of age). All individuals below the age of 5 (100%, n = 14) were seen to have improved urologically after the untethering surgery under the guidance of the Malaysia NTD support group. Improvement was scored and observed using KUB (Kidneys, Ureters and Bladder) ultrasound surveillance before untethering and continued thereafter. Spina bifida individuals may procure healthy bladder and bowel continence for the rest of their lives provided that neurosurgical and urological treatments were sought soon after birth and continues into adulthood.

9.
Pediatr Phys Ther ; 34(2): 261-267, 2022 04 01.
Article in English | MEDLINE | ID: mdl-35385464

ABSTRACT

PURPOSE: This case report highlights the potential value of delivering a high-dose physical therapy (PT) intervention for a child with a neurodegenerative disease. We include developmental outcomes for a 23-month-old toddler with biallelic TBCD gene mutations following daily outpatient PT. SUMMARY OF KEY POINTS: The child had clinical improvements in gross and fine motor, cognition, expressive and receptive language, socioemotional, and adaptive behavior function as determined through Goal Attainment Scaling, Gross Motor Function Measure, and Bayley Scales of Infant and Toddler Development following daily PT intervention. STATEMENT OF CONCLUSION AND RECOMMENDATIONS FOR CLINICAL PRACTICE: High-dose outpatient PT may be beneficial for a child with a neurodegenerative disease at some time frames. In selected cases, if the neurodegenerative disease slowly progresses, high-dose PT may be a treatment option to promote motor change.


Subject(s)
Neurodegenerative Diseases , Physical Therapy Modalities , Child , Child Development , Child, Preschool , Cognition , Developmental Disabilities , Humans , Infant , Microtubule-Associated Proteins/genetics , Motor Skills , Neurodegenerative Diseases/therapy , Outpatients
10.
Neuropsychol Rehabil ; 32(8): 1854-1867, 2022 Sep.
Article in English | MEDLINE | ID: mdl-35475722

ABSTRACT

Acquired brain injury (ABI) occurs commonly in young children. Despite this, the psychosocial implications of ABI in young children are not established, with little understood about the impacts on self-perception and self-esteem. In this study we investigated self-perception, self-esteem and behaviour of children with early ABI. Children with an ABI (n = 47) before six years were compared to 17 typically developing controls (TDCs) matched on demographics. Children were aged 6-12 years and completed the Harter Self-Perception Profile. One parent completed the Child Behavior Checklist. No differences for self-perception and self-esteem were found between the groups. Parents of children with an early ABI reported more internalizing and externalizing behaviours. Children with more externalizing behaviour and social skill problems had more negative self-perceptions. Interaction effects were seen between socioeconomic status (SES) and child self-perception and behaviour. Specifically, children from families of higher SES had a more positive perception of their appearance and children from lower SES backgrounds had more externalizing behaviours and social problems. The study suggests that the relationship between ABI and self-perception and self-esteem is complicated and that children with behavioural problems have lowered feelings of competence. SES has an important role in self-perception and behavioural outcomes.


Subject(s)
Brain Injuries , Problem Behavior , Brain Injuries/psychology , Child , Child, Preschool , Humans , Parents , Self Concept , Social Class
11.
Nat Rev Dis Primers ; 8(1): 12, 2022 02 24.
Article in English | MEDLINE | ID: mdl-35210461

ABSTRACT

Stroke is an important cause of neurological morbidity in children; most survivors have permanent neurological deficits that affect the remainder of their life. Stroke in childhood, the focus of this Primer, is distinguished from perinatal stroke, defined as stroke before 29 days of age, because of its unique pathogenesis reflecting the maternal-fetal unit. Although approximately 15% of strokes in adults are haemorrhagic, half of incident strokes in children are haemorrhagic and half are ischaemic. The causes of childhood stroke are distinct from those in adults. Urgent brain imaging is essential to confirm the stroke diagnosis and guide decisions about hyperacute therapies. Secondary stroke prevention strongly depends on the underlying aetiology. While the past decade has seen substantial advances in paediatric stroke research, the quality of evidence for interventions, such as the rapid reperfusion therapies that have revolutionized arterial ischaemic stroke care in adults, remains low. Substantial time delays in diagnosis and treatment continue to challenge best possible care. Effective primary stroke prevention strategies in children with sickle cell disease represent a major success, yet barriers to implementation persist. The multidisciplinary members of the International Pediatric Stroke Organization are coordinating global efforts to tackle these challenges and improve the outcomes in children with cerebrovascular disease.


Subject(s)
Anemia, Sickle Cell , Brain Ischemia , Stroke , Adult , Anemia, Sickle Cell/complications , Brain Ischemia/complications , Child , Diagnostic Imaging , Female , Humans , Pregnancy , Secondary Prevention , Stroke/epidemiology , Stroke/etiology , Stroke/therapy
13.
Pediatrics ; 148(5)2021 11.
Article in English | MEDLINE | ID: mdl-34649982

ABSTRACT

OBJECTIVES: With the Children with Hemiparesis Arm and Hand Movement Project (CHAMP) multisite factorial randomized controlled trial, we compared 2 doses and 2 constraint types of constraint-induced movement therapy (CIMT) to usual customary treatment (UCT). METHODS: CHAMP randomly assigned 118 2- to 8-year-olds with hemiparetic cerebral palsy to one of 5 treatments with assessments at baseline, end of treatment, and 6 months posttreatment. Primary blinded outcomes were the assisting hand assessment; Peabody Motor Development Scales, Second Edition, Visual Motor Integration; and Quality of Upper Extremity Skills Test Dissociated Movement. Parents rated functioning on the Pediatric Evaluation of Disabilities Inventory-Computer Adaptive Test Daily Activities and Child Motor Activity Log How Often scale. Analyses were focused on blinded and parent-report outcomes and rank-order gains across all measures. RESULTS: Findings varied in statistical significance when analyzing individual blinded outcomes. parent reports, and rank-order gains. Consistently, high-dose CIMT, regardless of constraint type, produced a pattern of greatest short- and long-term gains (1.7% probability of occurring by chance alone) and significant gains on visual motor integration and dissociated movement at 6 months. O'Brien's rank-order analyses revealed high-dose CIMT produced significantly greater improvement than a moderate dose or UCT. All CIMT groups improved significantly more in parent-reported functioning, compared with that of UCT. Children with UCT also revealed objective gains (eg, 48% exceeded the smallest-detectable assisting hand assessment change, compared with 71% high-dose CIMT at the end of treatment). CONCLUSIONS: CHAMP provides novel albeit complex findings: although most individual blinded outcomes fell below statistical significance for group differences, high-dose CIMT consistently produced the largest improvements at both time points. An unexpected finding concerns shifts in UCT toward higher dosages, with improved outcomes compared with previous reports.


Subject(s)
Cerebral Palsy/rehabilitation , Exercise Movement Techniques/methods , Immobilization/methods , Paresis/rehabilitation , Child , Child, Preschool , Conditioning, Operant , Female , Humans , Male , Time Factors , Treatment Outcome
15.
Genes (Basel) ; 12(9)2021 09 18.
Article in English | MEDLINE | ID: mdl-34573423

ABSTRACT

We performed a genome-wide association study (GWAS) to identify genetic variation associated with common forms of idiopathic generalized epilepsy (GE) and focal epilepsy (FE). Using a cohort of 2220 patients and 14,448 controls, we searched for single nucleotide polymorphisms (SNPs) associated with GE, FE and both forms combined. We did not find any SNPs that reached genome-wide statistical significance (p ≤ 5 × 10-8) when comparing all cases to all controls, and few SNPs of interest comparing FE cases to controls. However, we document multiple linked SNPs in the PADI6-PADI4 genes that reach genome-wide significance and are associated with disease when comparing GE cases alone to controls. PADI genes encode enzymes that deiminate arginine to citrulline in molecular pathways related to epigenetic regulation of histones and autoantibody formation. Although epilepsy genetics and treatment are focused strongly on ion channel and neurotransmitter mechanisms, these results suggest that epigenetic control of gene expression and the formation of autoantibodies may also play roles in epileptogenesis.


Subject(s)
Epilepsy, Generalized/genetics , Polymorphism, Single Nucleotide , Protein-Arginine Deiminase Type 4/genetics , Protein-Arginine Deiminase Type 6/genetics , Black or African American/genetics , Case-Control Studies , Chromosomes, Human, Pair 1 , Epilepsies, Partial/genetics , Female , Genetic Predisposition to Disease , Genome-Wide Association Study , Humans , Male , White People/genetics
16.
Neurology ; 96(16): 729-730, 2021 04 20.
Article in English | MEDLINE | ID: mdl-33970882
17.
Pediatr Neurol ; 119: 3-10, 2021 06.
Article in English | MEDLINE | ID: mdl-33813331

ABSTRACT

BACKGROUND: Epilepsy in typical Sturge-Weber syndrome (SWS) is common, and many questions remain regarding the treatment outcomes. We analyzed a large multicenter database with focus on neurological drug treatment in different demographic and SWS characteristic groups. METHODS: A total of 268 patients with brain involvement and a history of seizures were selected from a research data registry generated from a multicenter cross-sectional questionnaire. We examined associations between medication use and binary variables such as sex, ethnicity, and brain, skin, and eye involvement laterality. We analyzed group differences in mean number of antiseizure medications and age at diagnosis, enrollment, and seizure onset and examined differences in median SWS neurological scores in groups of interest. RESULTS: The most frequently used medications were levetiracetam (48.1%), low-dose aspirin (44.8%), oxcarbazepine (39.9%), and phenobarbital (14.9%). Lamotrigine was more frequently used in adults than in children (P = 0.001). History of neurosurgery was associated with no current antiseizure medication use (P = 0.001), whereas bilateral brain involvement and family history of seizures were associated with using a higher number of antiseizure medications (P = 0.002, P = 0.027, respectively). Subjects with bilateral brain involvement and early seizure onset were associated with using a higher number of antiseizure medications (P = 0.002) and phenobarbital use (0.003). CONCLUSIONS: Levetiracetam, low-dose aspirin, and oxcarbazepine were the most frequently used medications. More severely affected patients were frequently on a greater number of antiseizure medications. Surgery for epilepsy was associated with the ability to discontinue antiseizure medication. Longitudinal studies are needed to further investigate medication use in patients with SWS.


Subject(s)
Anticonvulsants/pharmacology , Epilepsy/drug therapy , Epilepsy/etiology , Epilepsy/surgery , Sturge-Weber Syndrome/complications , Adolescent , Adult , Child , Cross-Sectional Studies , Female , Humans , Male , Neurosurgical Procedures , Outcome Assessment, Health Care , Young Adult
19.
Am J Med Genet A ; 185(1): 223-227, 2021 01.
Article in English | MEDLINE | ID: mdl-33078527

ABSTRACT

Legius syndrome is a disorder of the RAS and mitogen-activated protein kinase (MAPK) pathway first described in 2007 by Eric Legius, et al., that has been considered a milder phenotype than reported in the RASopathy neurofibromatosis type 1 (NF1). However, with approximately 200 cases reported in the literature, the Legius syndrome phenotype remains to be fully characterized. We report a child who presented with moyamoya syndrome and who has Legius syndrome due to a pathogenic variant in SPRED1. Vascular complications such as moyamoya syndrome have been reported in NF1. However, this association has not been reported in Legius syndrome. This child's case may represent an expansion of the clinical phenotype of Legius syndrome, and further study is needed. We emphasize the importance of obtaining neuroimaging studies in patients with Legius syndrome who present with new neurologic deficits.


Subject(s)
Adaptor Proteins, Signal Transducing/genetics , Cafe-au-Lait Spots/genetics , Moyamoya Disease/genetics , Neurofibromin 1/genetics , Cafe-au-Lait Spots/complications , Cafe-au-Lait Spots/diagnostic imaging , Cafe-au-Lait Spots/pathology , Child , Child, Preschool , Female , Genetic Predisposition to Disease , Humans , Male , Moyamoya Disease/complications , Moyamoya Disease/diagnostic imaging , Moyamoya Disease/pathology , Mutation/genetics , Phenotype , Vasculitis, Central Nervous System/complications , Vasculitis, Central Nervous System/diagnostic imaging , Vasculitis, Central Nervous System/genetics , Vasculitis, Central Nervous System/pathology
20.
JAMA Neurol ; 78(2): 165-176, 2021 02 01.
Article in English | MEDLINE | ID: mdl-33136137

ABSTRACT

Importance: Accurate and up-to-date estimates on incidence, prevalence, mortality, and disability-adjusted life-years (burden) of neurological disorders are the backbone of evidence-based health care planning and resource allocation for these disorders. It appears that no such estimates have been reported at the state level for the US. Objective: To present burden estimates of major neurological disorders in the US states by age and sex from 1990 to 2017. Design, Setting, and Participants: This is a systematic analysis of the Global Burden of Disease (GBD) 2017 study. Data on incidence, prevalence, mortality, and disability-adjusted life-years (DALYs) of major neurological disorders were derived from the GBD 2017 study of the 48 contiguous US states, Alaska, and Hawaii. Fourteen major neurological disorders were analyzed: stroke, Alzheimer disease and other dementias, Parkinson disease, epilepsy, multiple sclerosis, motor neuron disease, migraine, tension-type headache, traumatic brain injury, spinal cord injuries, brain and other nervous system cancers, meningitis, encephalitis, and tetanus. Exposures: Any of the 14 listed neurological diseases. Main Outcome and Measure: Absolute numbers in detail by age and sex and age-standardized rates (with 95% uncertainty intervals) were calculated. Results: The 3 most burdensome neurological disorders in the US in terms of absolute number of DALYs were stroke (3.58 [95% uncertainty interval [UI], 3.25-3.92] million DALYs), Alzheimer disease and other dementias (2.55 [95% UI, 2.43-2.68] million DALYs), and migraine (2.40 [95% UI, 1.53-3.44] million DALYs). The burden of almost all neurological disorders (in terms of absolute number of incident, prevalent, and fatal cases, as well as DALYs) increased from 1990 to 2017, largely because of the aging of the population. Exceptions for this trend included traumatic brain injury incidence (-29.1% [95% UI, -32.4% to -25.8%]); spinal cord injury prevalence (-38.5% [95% UI, -43.1% to -34.0%]); meningitis prevalence (-44.8% [95% UI, -47.3% to -42.3%]), deaths (-64.4% [95% UI, -67.7% to -50.3%]), and DALYs (-66.9% [95% UI, -70.1% to -55.9%]); and encephalitis DALYs (-25.8% [95% UI, -30.7% to -5.8%]). The different metrics of age-standardized rates varied between the US states from a 1.2-fold difference for tension-type headache to 7.5-fold for tetanus; southeastern states and Arkansas had a relatively higher burden for stroke, while northern states had a relatively higher burden of multiple sclerosis and eastern states had higher rates of Parkinson disease, idiopathic epilepsy, migraine and tension-type headache, and meningitis, encephalitis, and tetanus. Conclusions and Relevance: There is a large and increasing burden of noncommunicable neurological disorders in the US, with up to a 5-fold variation in the burden of and trends in particular neurological disorders across the US states. The information reported in this article can be used by health care professionals and policy makers at the national and state levels to advance their health care planning and resource allocation to prevent and reduce the burden of neurological disorders.


Subject(s)
Cost of Illness , Disability-Adjusted Life Years/trends , Global Burden of Disease/trends , Global Health/trends , Nervous System Diseases/diagnosis , Nervous System Diseases/epidemiology , Humans , United States/epidemiology
SELECTION OF CITATIONS
SEARCH DETAIL
...