AU - DRUCKER V TI - SMall-intestinal gallstone ileus and use of barium sulfate per os in its diagnosis PT - JOUR DP - 1959 TA - A.M.A. Archives of Surgery pages = {22-30}, VI - 79 IP - 1 AID - 10.1001/archsurg.1959.04320070026004 [doi] 4100 - http://dx.doi.org/10.1001/archsurg.1959.04320070026004 SO - A.M.A. Archives of Surgery July 1, 1959 79(1):22