Vitamin B12 in pregnancy and the puerperium.
D005260:Female; D006801:Humans; D049590:Postpartum Period / Q000097:blood*; D011247:Pregnancy / Q000097:blood; D014805:Vitamin B 12 / Q000097:blood*
D014805:Vitamin B 12
PREGNANCY/blood; PUERPERIUM/blood; VITAMIN B 12/blood