Development of a small RGD peptide fibrinogen receptor antagonist with potent antiaggregatory activity in vitro - Samanen, J; Ali, F; Romoff, T; Calvo, R; Sorenson, E; Vasko, J; Storer, B; Berry, D; Bennett, D; Strohsacker, M; Powers, D; Stadel, J; Nichols, A (J Med Chem, 1991)