Multicenter Study
Multicentre propensity score-matched analysis of conventional versus extended abdominoperineal excision for low rectal cancer.
Br J Surg. 2014 Jun 1; 101 (7): 874-82.
Randomized Controlled Trial
Comparative effectiveness of sphincter-sparing surgery versus abdominoperineal resection in rectal cancer: patient-reported outcomes in National Surgical Adjuvant Breast and Bowel Project randomized trial R-04.
Ann. Surg. 2015 Jan 1; 261 (1): 144-8.
Comparative Study
Extralevator versus standard abdominoperineal excision for rectal cancer.
Tech Coloproctol. 2015 Mar 1; 19 (3): 145-52.