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2. Study of ovarian tumors treated at Nagoya University Hospital, 1965–1988;Nakashima;Gynecol Oncol,1990
3. Ovarian cancers in Miyagi prefecture, Japan. An international survey of distributions of histologic types of tumours of the testis and ovary;Sasano;UICC technical report series,1983
4. Ovarian tumours in Nigerian Africans. An international survey of distributions of histologic types of tumours of the testis and ovary;Williams;UICC technical report series,1983
5. Tumours of the female genitalia;James,1973