RT Journal Article SR Electronic T1 Heart Disease: A Textbook of Cardiovascular Medicine, ed. by Eugene Braunwald, M.D. JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 565 OP 565 VO 51 IS 3 A1 Underwood, Donald A. YR 1984 UL http://www.ccjm.org/content/51/3/565.2.abstract AB