Proliferating cell nuclear antigen (pcna) immunostaining in breast cancer and its relationships with other pathologic features - Carvalho, F. M.; Barros, A C S D; Carvalho, J. P.; Ferreira, R C R; Souza, Aurélio Zecchi de; Pinotti, José Aristodemo (Congresso Mundial de Mastologia, 1994)