title: Fetal contribution to amniotic fluid. A preliminary report.
mesh_terms: D000653:Amniotic Fluid; D000818:Animals; D005260:Female; D005333:Fetus / Q000000981:diagnostic imaging / Q000502:physiology*; D000882:Haplorhini; D007456:Iodine Isotopes; D007468:Iodopyracet; D011247:Pregnancy; D011859:Radiography; D014554:Urination
chemical_list: D007456:Iodine Isotopes; D007468:Iodopyracet