Apgar Papers at NLM.
D000776:Anesthesiology / Q000266:history; D001109:Archives / Q000266:history; D049673:History, 20th Century; D049674:History, 21st Century; D007993:Libraries, Medical / Q000266:history* / Q000706:statistics & numerical data / Q000639:trends; D009317:National Library of Medicine (U.S.) / Q000266:history*; D009359:Neonatology / Q000266:history* / Q000379:methods* / Q000639:trends*; D010822:Physicians, Women / Q000266:history*; D014481:United States