Rossi, Benedito Mauro, Wilson Toshihiko Nakagawa, José Augusto P. Fernandes, Ademar Lopes, and Lauma Dzidra Paegle. 1998. “Treatment of Severe Actinic Rectitis”. São Paulo Medical Journal 116 (1):1629-33. https://periodicosapm.emnuvens.com.br/spmj/article/view/2193.