Vitamin D and plasma magnesium in pregnancy.
D002118:Calcium / Q000097:blood; D005260:Female; D005312:Fetal Blood / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000097:blood*; D011247:Pregnancy; D014807:Vitamin D / Q000494:pharmacology*
D014807:Vitamin D; D008274:Magnesium; D002118:Calcium