title: Placental transfer of calcium in pregnant sows on normal and limited-calcium rations.
mesh_terms: D000818:Animals; D002118:Calcium / Q000378:metabolism*; D002127:Calcium Isotopes; D005260:Female; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D011270:Pregnancy, Animal; D013552:Swine
chemical_list: D002127:Calcium Isotopes; D002118:Calcium