title: [3 cases of malignant choriocarcinoma originating in the stomach].
mesh_terms: D002822:Choriocarcinoma / Q000473:pathology* / Q000648:ultrastructure; D006063:Chorionic Gonadotropin / Q000032:analysis; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011247:Pregnancy; D013274:Stomach Neoplasms / Q000473:pathology* / Q000648:ultrastructure
chemical_list: D006063:Chorionic Gonadotropin