Pirwitz M J, Lange R A, Willard J E, Landau C, Glamann D B, Foerster E H, Todd E, Hillis L D
Department of Internal Medicine (Cardiovascular Division), University of Texas Southwestern Medical Center, Dallas 75235-9047.
Am J Cardiol. 1995 Jan 1;75(1):77-9. doi: 10.1016/s0002-9149(99)80533-5.