RT Journal Article SR Electronic T1 Myxedema Heart JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 29 OP 34 VO 7 IS 1 A1 Flannery, Wilbur E. A1 Ernstene, A. Carlton YR 1940 UL http://www.ccjm.org/content/7/1/29.abstract AB