Gonadoblastoma with dysgerminoma in one ovary and gonadoblastoma with dysgerminoma and yolk sac tumor in the contralateral ovary in a girl with 46XX karyotype. - Obata,N.H.; Nakashima,N.; Kawai,M.; Kikkawa,F.; Mamba,S.; Tomoda,Y. (Gynecol Oncol, 1995)