RT Journal Article SR Electronic T1 A 41-year-old man with abdominal pain JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 725 OP 728 DO 10.3949/ccjm.81a.14051 VO 81 IS 12 A1 Habib Rehman YR 2014 UL http://www.ccjm.org/content/81/12/725.abstract AB