250 years of controlled clinical trials: where it all began.
Hammerschmidt
Dale E
DE
D018849:Controlled Clinical Trials as Topic / Q000266:history*; D049671:History, 18th Century; D006801:Humans; D009326:Naval Medicine / Q000266:history; D010151:Paintings / Q000266:history; D012606:Scotland; D012614:Scurvy / Q000266:history* / Q000517:prevention & control