Ligand bridging mediates integrin alpha IIb beta 3 (platelet GPIIB-IIIA) dependent homotypic and heterotypic cell-cell interactions - Gawaz,M.P.; Loftus,J.C.; Bajt,M.L.; Frojmovic,M.M.; Plow,E.F.; Ginsberg,M.H. (J Clin Invest, 1991)