title: Variation in the prothrombin-time ratio during oral anticoagulation.
authors.forename: R A
authors.initials: RA
authors.lastname: O'Reilly
authors.forename: P J
authors.initials: PJ
authors.lastname: Kearns
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use*; D006350:Heart Valve Prosthesis; D006470:Hemorrhage / Q000209:etiology; D006801:Humans; D011517:Prothrombin Time; D012016:Reference Values; D012306:Risk; D013923:Thromboembolism / Q000209:etiology
chemical_list: D000925:Anticoagulants