title: [Morphological studies of HCG producing cells and normal chorionic villi].
mesh_terms: D006063:Chorionic Gonadotropin / Q000378:metabolism*; D002824:Chorionic Villi / Q000378:metabolism / Q000648:ultrastructure*; D005260:Female; D005865:Gestational Age; D006801:Humans; D010920:Placenta / Q000648:ultrastructure*; D011247:Pregnancy
chemical_list: D006063:Chorionic Gonadotropin