Curtis Jeptha P, Wang Yongfei, Portnay Edward L, Masoudi Frederick A, Havranek Edward P, Krumholz Harlan M
Section of Cardiovascular Disease, Department of Internal Medicine, Yale University School of Medicine, Room I-456 SHM, 333 Cedar Street, PO Box 208088, New Haven CT 06520-8088, USA.
BMJ. 2003 Dec 6;327(7427):1322-3. doi: 10.1136/bmj.327.7427.1322.