HISTORY OF MEDICINE: ORAL ANTICOAGULATION.
D000925:Anticoagulants; D001777:Blood Coagulation; D002170:Canada; D004358:Drug Therapy; D006664:History; D049673:History, 20th Century; D006801:Humans; D008511:Medicine; D014481:United States
D000925:Anticoagulants
ANTICOAGULANTS; CANADA; DRUG THERAPY; HISTORY; HISTORY OF MEDICINE, 20TH CENT.; UNITED STATES