title: Perinatal vitamin D metabolism.
mesh_terms: D005260:Female; D005333:Fetus / Q000378:metabolism*; D006801:Humans; D006996:Hypocalcemia / Q000209:etiology; D007231:Infant, Newborn / Q000378:metabolism*; D007234:Infant, Premature / Q000378:metabolism; D008431:Maternal-Fetal Exchange; D011247:Pregnancy; D014807:Vitamin D / Q000378:metabolism*
chemical_list: D014807:Vitamin D