<prompt> Which of the following statements is true for Nigro;s regimenIt is a regimen for anal canal neoplasmIt incorporates chemotherapy with radiation as an alternative to surgeryHas the advantage of preserving continenceAll of the above  <response>: Nowadays, primary treatment of Anal cancer is by chemoradiotherapy , the chemotherapy sually including a combination of 5-fluorouracil 5-FU with mitomycin C or cisplatin. Ref: Bailey Love;s Sho Practice of Surgery,E25,Page-1269 