TY - JOUR AN - 4 AU - Freitag,M. AU - Albert,W. AU - Petersen,S. AU - Ludwig,K. TI - Iatrogenic colon perforation from the viewpoint of the surgeon. Experiences with 11 patients. JO - Chirurg PY - 2000 VL - 71 SP - 568-571 M2 - 568 DO - 10.1007/s001040051104 ER -