Affinity modulation of the allb(33 integrin (platelet GPIIb-IIIa) is an intrinsic property of the receptor - O’Toole, TE; Loftus, JC; Du, X; Glass, AA; Ruggeri, ZM; Shattil, SJ; Plow, EF; Ginsberg, MH (Cell Regulation, 1990)