title: Passage of thyroxine across the placenta in the foetal sheep.
mesh_terms: D000818:Animals; D002404:Catheterization; D005260:Female; D005333:Fetus / Q000378:metabolism*; D007456:Iodine Isotopes; D008431:Maternal-Fetal Exchange; D010920:Placenta / Q000378:metabolism; D011247:Pregnancy; D012756:Sheep; D013974:Thyroxine / Q000378:metabolism*; D014682:Vena Cava, Inferior
chemical_list: D007456:Iodine Isotopes; D013974:Thyroxine