Name Info Provider Link
subscription/membership/fee required Ingenta plc https://www.ingentaconnect.com/openurl?genre=article&issn=&volume=133&issue=1&spage=151&aulast=Pancaro
Childbirth free resource MedlinePlus Health Information https://medlineplus.gov/childbirth.html
subscription/membership/fee required Ovid Technologies, Inc. http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=33835077.ui
free resource scite Smart Citations https://scite.ai/reports/33835077
subscription/membership/fee required Wolters Kluwer https://doi.org/10.1213/ANE.0000000000005526