Use of hirulog in the prevention of venous thrombosis after major hip or knee surgery - Ginsberg, J S; Nurmohamed, M T; Gent, M; Mackinnon, B; Sicurella, J; Brilled-wards, P; Levine, M N; Panju, A A; Powers, P; Stevens, P; Turpie, A GG; Weitz, J; Buller, H R; Tencate, J W; Neemeh, J; Adelman, B; Fox, I; Maraganore, J; Hirsh, J (Circulation, 1994)