title: Absorption of calcium by premature infants using a stable isotope.
mesh_terms: D002118:Calcium / Q000378:metabolism*; D002127:Calcium Isotopes; D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007408:Intestinal Absorption
chemical_list: D002127:Calcium Isotopes; D002118:Calcium