title: [Placental system and calcium metabolism].
mesh_terms: D002116:Calcitonin / Q000097:blood; D002118:Calcium / Q000097:blood*; D002762:Cholecalciferol / Q000097:blood; D005260:Female; D006801:Humans; D008431:Maternal-Fetal Exchange; D010281:Parathyroid Hormone / Q000097:blood; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy
chemical_list: D010281:Parathyroid Hormone; D002762:Cholecalciferol; D002116:Calcitonin; D002118:Calcium