The fetoplacental unit.
D000653:Amniotic Fluid / Q000032:analysis; D000818:Animals; D002247:Carbon Isotopes; D003687:Dehydroepiandrosterone / Q000378:metabolism; D005314:Embryonic and Fetal Development; D004964:Estriol / Q000097:blood; D004967:Estrogens / Q000096:biosynthesis / Q000378:metabolism*; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005333:Fetus / Q000378:metabolism* / Q000502:physiology; D000882:Haplorhini; D006801:Humans; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000378:metabolism* / Q000502:physiology; D011247:Pregnancy; D011248:Pregnancy Complications / Q000175:diagnosis; D011284:Pregnenolone / Q000378:metabolism; D011374:Progesterone / Q000378:metabolism; D013256:Steroids / Q000032:analysis / Q000096:biosynthesis / Q000378:metabolism*
D002247:Carbon Isotopes; D004967:Estrogens; D013256:Steroids; D003687:Dehydroepiandrosterone; D011374:Progesterone; D011284:Pregnenolone; D004964:Estriol