Effects of a low molecular weight heparin (Fragmin®) and of unfractionated heparin on coagulation and platelet activation at the site of plug formation in vivo - Eichinger, S; Wolzt, M; Nieszpaur-Los, M; Schneider, B; Lechner, K; Eichler, H G; Kyrle, P A (Thromb Haemost, 1994)