title: HCS, HCG, and HCG subunit serum levels during multiple pregnancies.
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D005260:Female; D013006:Growth Hormone / Q000097:blood; D006801:Humans; D009929:Organ Size; D010920:Placenta / Q000033:anatomy & histology; D010928:Placental Lactogen / Q000097:blood*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D011272:Pregnancy, Multiple; D011388:Prolactin / Q000097:blood; D011863:Radioimmunoassay
chemical_list: D006063:Chorionic Gonadotropin; D011388:Prolactin; D013006:Growth Hormone; D010928:Placental Lactogen