Name | Info | Provider | Link |
---|---|---|---|
subscription/membership/fee required | Elsevier Science | https://linkinghub.elsevier.com/retrieve/pii/0020-7292(90)90718-Z | |
Pregnancy | free resource | MedlinePlus Health Information | https://medlineplus.gov/pregnancy.html |
subscription/membership/fee required | Wiley | https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0020-7292&date=1990&volume=31&issue=2&spage=175 |