Platelet ADP receptor and a2-adrenoreceptor interaction. Evidence for an ADP requirement for epinephrine-induced platelet activation and an influence of epinephrine on ADP binding - Figures, W R; Scearce, L M; Wachtfogel, Y; Chen, J; Colman, R F; Colman, R W (J Biol Chem, 1986)