Safety and efficacy of recombinant hirudin (CGP 39 393) versus heparin in patients with stable angina undergoing coronary angioplasty - van den Bos, A A; Deckers, J W; Heyndrickx, G R; Laarman, G-J; Surya-pranata, H; Zijlstra, F; Close, P; Rijnierse JJ, M M; Buller, H R; Serruys, P W (Circulation, 1993)