Randomized evaluation of the safety and efficacy of enoxaparin versus unfractionated heparin in high-risk patients with non-ST-segment elevation acute coronary syndromes receiving the glycoprotein IIb/IIIa inhibitor eptifibatide - Goodman,S.G.; Fitchett,D.; Armstrong,P.W.; Tan,M.; Langer,A. (Circulation, 2003)