Immunoexpression of Ki67, proliferative cell nuclear antigen, and Bcl-2 proteins in a case of ameloblastic fibrosarcoma - Pontes, Hélder Antônio Rebelo; Pontes, Flávia Sirotheau Corrêa; Silva, Brunno Santos de Freitas; Cury, Sérgio Elias Vieira; Fonseca, Felipe Paiva; Salim, Rodrigo Alves; Pinto Júnior, Décio dos Santos (Annals of diagnostic pathology, 2010)