Down Memory Lane: debut of a drug.
D000328:Adult; D005260:Female; D049673:History, 20th Century; D006801:Humans; D010406:Penicillins / Q000266:history* / Q000627:therapeutic use; D011247:Pregnancy; D011645:Puerperal Infection / Q000188:drug therapy; D013290:Streptococcal Infections / Q000188:drug therapy
D010406:Penicillins