TY - JOUR AU - Abrams, S ACommittee on Nutrition TI - Calcium and vitamin d requirements of enterally fed preterm infants JO - Pediatrics VL - 131 PY - 2013 DO - 10.1542/peds.2013-0420 L3 - PubMed-ID: 23629620 SP - e1676 EP - 1683 ER -