Comparative arterial antithrombotic activity of clopidogrel and acetyl salicylic acid in the pig - Samama, Ch M; Bonnin, P; Bonneau, M; Pignaud, G; Mazoyer, E; Bailliart, O; Maffrand, J P; Viars, P; Caen, J P; Drouet, L (Thromb Haemost, 1992)