RT Journal Article SR Electronic T1 Perforation of an Acute Peptic Ulcer JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 71 OP 74 VO 2 IS 4 A1 Jones, T. E. A1 Yant, J. H. YR 1935 UL http://www.ccjm.org/content/2/4/71.abstract AB