Name Info Provider Link
subscription/membership/fee required HighWire https://fn.bmj.com/lookup/pmidlookup?view=long&pmid=34045281
Fetal Health and Development free resource MedlinePlus Health Information https://medlineplus.gov/fetalhealthanddevelopment.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=34045281.ui
free resource scite Smart Citations https://scite.ai/reports/34045281