title: Measurements of Na +  transport in the isolated, artificially perfused guinea pig placenta.
mesh_terms: D000818:Animals; D001692:Biological Transport; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008431:Maternal-Fetal Exchange; D008954:Models, Biological; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D012964:Sodium / Q000378:metabolism*; D012975:Sodium Isotopes
chemical_list: D012975:Sodium Isotopes; D012964:Sodium