Rottman J N, Steinman R C, Albrecht P, Bigger J T, Rolnitzky L M, Fleiss J L
Department of Medicine, School of Public Health, Columbia University-Presbyterian Medical Center, New York, New York 10032.
Am J Cardiol. 1990 Dec 15;66(20):1522-4. doi: 10.1016/0002-9149(90)90551-b.