Use of aortic counterpulsation to improve sustained coronary artery patency during acute myocardial infarction: Results of a randomized trial

E. Magnus Ohman, Barry S. George, Christopher J. White, Morton J. Kern, Paul A. Gurbel, Robert J. Freedman, Conor Lundergan, Joseph R. Hartmann, J. David Talley, Martin J. Frey, George Taylor, Jeffrey D. Leimberger, Paul M. Owens, Kerry L. Lee, Richard S. Stack, Robert M. Califf