Name Info Provider Link
free resource Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S1098-3015(11)01423-9
Pneumococcal Infections free resource MedlinePlus Health Information https://medlineplus.gov/pneumococcalinfections.html
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S1098-3015(11)01423-9