RT Journal Article SR Electronic T1 Pulmonary emboli causing sudden death in ulcerative colitis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 71 OP 74 VO 41 IS 2 A1 Michener, William M. YR 1974 UL http://www.ccjm.org/content/41/2/71.abstract AB