Liewluck, T. .; Wongpathumtip, P. .; Chuangsuwanich, T. .; Charoenpanich, P. Primary Peripheral Primitive Neuroectodermal Tumor of the Ovary With an Epithelial Cyst : A Case Report and Review of Literature. Siriraj Med J 2003, 55, 425-437.