Evidence based medicine. Example was flawed.
Fitzmaurice
D A
DA
D000368:Aged; D001281:Atrial Fibrillation / Q000188:drug therapy; D015510:Clinical Medicine; D003661:Decision Support Techniques; D005260:Female; D006801:Humans; D008491:Medical Informatics Applications; D014859:Warfarin / Q000627:therapeutic use
D014859:Warfarin