Medication changes since the thirties.
Trueblood
C A
CA
D004358:Drug Therapy / Q000639:trends*; D005194:Family Practice / Q000266:history*; D049673:History, 20th Century; D009294:Narcotics / Q000266:history; D004364:Pharmaceutical Preparations / Q000266:history*; D014481:United States
D009294:Narcotics; D004364:Pharmaceutical Preparations