title: Human chorionic gonadotrophin (hCG) in IUD users.
mesh_terms: D001695:Biology; D006063:Chorionic Gonadotropin; D003267:Contraception; D010064:Embryo Implantation; D047108:Embryonic Development; D004703:Endocrine System; D005193:Family Planning Services; D006062:Gonadotropins; D006728:Hormones; D007434:Intrauterine Devices; D010827:Physiology; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012098:Reproduction; D012102:Reproductive Control Agents; D012106:Research
chemical_list: D006063:Chorionic Gonadotropin; D006062:Gonadotropins; D006728:Hormones; D012102:Reproductive Control Agents
keywords: Biology; Clinical Research; Contraception; Contraceptive Methods; Endocrine System; Family Planning; Gonadotropins; Gonadotropins, Chorionic; Hormones; Implantation; Iud; Physiology; Postimplantation Phase; Pregnancy; Pregnancy, First Trimester; Reproduction; Reproductive Control Agents; Research Methodology