title: Variation in the prothrombin-time ratio during oral anticoagulation.
authors.forename: J M
authors.initials: JM
authors.lastname: Carr
authors.forename: G
authors.initials: G
authors.lastname: Horowitz
mesh_terms: D000925:Anticoagulants / Q000627:therapeutic use*; D006801:Humans; D011517:Prothrombin Time; D012016:Reference Values
chemical_list: D000925:Anticoagulants