Chemotherapy for granulosa cell tumors of the ovary: a review of 25 patients with long-term follow-up. - Sehouli,J.; Drescher,F.; Mustea,A.; Nehmzow,M.; Friedmann,W.; Kühn,W.; Elling,D.; Klare,P.; Lichtenegger,W. (Geburtsh Frauenheilk, 2003)