RT Journal Article SR Electronic T1 Changing Trends in Surgery of the Colon JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 209 OP 215 VO 17 IS 4 A1 Crile, George A1 Turnbull, R. B. YR 1950 UL http://www.ccjm.org/content/17/4/209.abstract AB