Concurrent chemoradiotherapy with 5-fluorouracil and mitomycin C for invasive anal carcinoma in human immunodeficiency virus-positive patients receiving highly active antiretroviral therapy - Fraunholz,I.; Weiss,C.; Eberlein,K.; Haberl,A.; Rödel,C. (Int J Radiat Oncol Biol Phys, 2010)