RT Journal Article SR Electronic T1 Dyspnea on exertion with cardiomegaly JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 486 OP 489 VO 60 IS 6 A2 Longworth, David L. A2 Stoller, James K. A1 Arnold, Anita YR 1993 UL http://www.ccjm.org/content/60/6/486.abstract AB