Surgical therapy for epidermoid carcinoma of the anal canal: an NSQIP assessment of short-term outcomes.
Causey MW, Steele SR, Maykel J, Champagne B, Johnson EK. Surgical therapy for epidermoid carcinoma of the anal canal: an NSQIP assessment of short-term outcomes. J Surg Res. 2012 Oct; 177(2):235-40.