Tokaracetin, a new platelet antagonist that binds to platelet glycoprotein lb and inhibits von Willebrand factor- dependent shear-induced platelet aggregation - Kawasaki, T; Taniuchi, Y; Hisamichi, N; Fujimura, Y; Suzuki, M; Titani, K; Kaku, S; Satoh, N; Takenaka, T; Handa, M; Sawai, Y (Biochem J, 1995)