Subcutaneous low-molecular-weight heparin or oral anticoagulants for the prevention of deep-vein thrombosis in elective hip and knee replacement? - Hamulyak,K.; Lensing,A.WA.; van der Meer,J.; Smid,W.M.; van Ooy,A.; Hoek,J.A.; for the Fraxiparine Oral Anticoagulant Study Group,null. (Thromb Haemostas, 1995)