title: Assessment of human chorionic gonadotropin (HCG) levels during luteal phase in women using intrauterine contraception.
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood; D005260:Female; D006801:Humans; D007434:Intrauterine Devices; D008183:Luteal Phase; D008598:Menstruation
chemical_list: D006063:Chorionic Gonadotropin