Insulin.
D000328:Adult; D000368:Aged; D002170:Canada; D003920:Diabetes Mellitus / Q000188:drug therapy; D005260:Female; D049673:History, 20th Century; D006801:Humans; D007328:Insulin / Q000266:history* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D014481:United States
D007328:Insulin