ADP plays an important role in mediating platelet aggregation and cyclic flow variations in vivo in stenosed and endothelium-injured canine coronary arteries - Yao, S K; Ober, J C; McNatt, J; Benedict, C R; Rosolowsky, M; Anderson, V; Cui, K; Maffrand, J P; Campbell, W B; Buja, L M; Willerson, J T (Circ Res, 1992)