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Day
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Figure 2. Kaplan-Meier survival rate in the sphincter-preserving resection and abdominoperineal resection groups. A: overall survival rate;
B: disease-free survival rate; C: overall survival rate according to pathological stage in the sphincter-preserving resection group
DISCUSSION
Transanal approaches to pelvic dissection have attracted attention to improve oncologic and functional
outcomes by providing better visualization and more accurate TME dissection. In 1984, Dr. Gerald Marks
