Tissue factor reduction and tissue factor pathway inhibitor release after heparin administration - Gori, AM; Pepe, G; Attanasio, M; Falciani, M; Abbate, R; Prisco, D; Fedi, S; Giusti, B; Brunelli, T; Comeglio, P; Gensini, GF; Neri, GG Serneri (Thromb Haemost, 1999)