Chang H, Yanachkov IB, Dix EJ, Li YF, Barnard MR, Wright GE, Michelson AD, Frelinger AL. Modified diadenosine tetraphosphates with dual specificity for P2Y1 and P2Y12 are potent antagonists of ADP-induced platelet activation. J Thromb Haemost. 2012 Dec; 10(12):2573-80.