Cutaneous papillomas of green turtles: a morphological, ultra-structural and immunohistochemical study in Brazilian specimens - Matushima, Eliana Reiko; Longatto Filho, Adhemar; Di Loretto, Celso; Kanamura, Cristina Takami; Sinhorini, Idércio Luiz; Gallo, Berenice; Baptistolle, Cecília (Brazilian Journal of Veterinary Research and Animal Science, 2001)