Bleeding complications of oral anticoagulant treatment: an inceptioncohort, prospective collaborative study (ISCOAT) - Palareti, G; Leali, N; Cocchieri, S; Poggi, M; Manotti, C; D’Angelo, A; Pengo, V; Erba, N; Moia, M; Ciavarella, N; Devoto, G; Berrettini, M; Musolesi, S (Lancet, 1996)