RT Journal Article SR Electronic T1 Endoscopic retrograde cholangiopancreatography (ERCP) JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 93 OP 101 VO 41 IS 3 A1 Sivak, Michael V. A1 Sullivan, B. H. YR 1974 UL http://www.ccjm.org/content/41/3/93.abstract AB