The protective role of lychnophora mart (brazilian arnica) in 1,2-dimethylhydrazine induced experimental colon carcinogenesis - Fernandes, Cleverson Rodrigues; Lopes, Norberto Peporine; Turatti, Aline; Silva, Alfredo Ribeiro da; Garcia, Sérgio Britto (International Symposium of Post Graduation and Research (SINPOSPq), 2008)