Oroanal papilloma in a rough-toothed dolphin (Steno Bredanensis) exposed to high levels of PCB'S and DDT'S - Gonzales-Viera, Omar; Ruoppolo, Valeria; Marigo, Juliana; Bertozzi, Carolina; Seixa, Duarte Maria Irma; Takakura, Cleusa; Vanstreels, Ralph Eric Thijl; Catão-Dias, José Luiz (Annual International Conference of the Wildlife Disease Association, 2011)