Dias, M.F., Pereira, H.S., Sousa, L.A., Torgal, I.R. and De Oliveira, C.F. 1997. Comparative study of benign and malignant tumor of the ovary. Acta Médica Portuguesa. 10, 10 (Oct. 1997), 653–7. DOI:https://doi.org/10.20344/amp.2483.