Cytogenetic description of breast fibroadenomas: alterations related solely to proliferation ? - Burbano, R. R.; Lima, E. M.; Khayat, A. S.; Barbieri Neto, José; Cabral, I. R.; Bastos Júnior, L.; Bahia, Marcelo de Oliveira; Casartelli, Cacilda (Brazilian Journal of Medical and Biological, 2001)