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AimThere are no studies on the respective influence of microscopic involvement at the circumferential (R1c) and the distal margin (R1d) of the surgical specimen on oncological results after laparoscopic mesorectal excision.
MethodWe studied 333 consecutive patients undergoing laparoscopic mesorectal excision for cancer. An R1 resection was defined a by a circumferential and/or distal margin of 1 mm...
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