Vitamin D metabolism in pre-term infants.
D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D010710:Phosphates / Q000008:administration & dosage; D012279:Rickets / Q000517:prevention & control; D014807:Vitamin D / Q000378:metabolism*
D010710:Phosphates; D014807:Vitamin D