1. Ansell J, Hirsh J, Poller L, Bussey H, Jacobson A, Hylek E (2004) The pharmacology and management of the vitamin K antagonists: the seventh ACCP conference on antithrombotic and thrombolytic therapy. Chest 126(3 supp):204S–233S. doi: 10.1378/chest.126.3_suppl.204S
2. Levine MN, Raskob G, Beyth RJ, Kearon C, Schulman S (2004) Hemorrhagic complications of anticoagulant treatment: the seventh ACCP conference on antithrombotic and thrombolytic therapy. Chest 126(3 Suppl):287S–310S. doi: 10.1378/chest.126.3_suppl.287S
3. Reverter JC, Taséis D, Maragall S, Monteagudo J, Escolar G, Ordinas A (1995) Hemorrhagic incidents during prolonged ambulatory treatment with acenocoumarol. Med Clin (Barc) 105(4):127–130
4. Selva O’Callaghan A, San José Laporte A, Fuentes Camps I, Nicolau Fuste J, Piqueras Carrasco J, Vilardell Tarrés M (1997) Hemorrhagic complications and thrombotic phenomena in oral anticoagulation of elderly patients. Rev Clin Esp 197(5):323–328
5. García Garay MC, Martín Ortuño F, Roldán Schilling V, Martínez Martínez JG, Marco Vera P, Sogorb Garri F (1998) Safety of oral anticoagulation in aged patients with heart diseases. Rev Clin Esp 198(5):294–296