%0 Journal Article %T Estrogen producing ovarian fibrosarcoma: A case report %J Archive of "Nagoya Journal of Medical Science". %D 2019 %R 10.18999/nagjms.81.1.171 %K fibrosarcoma %K estrogen producing tumor %K sex-cord stromal tumor %K aromatase %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6433630/