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Low vitamin A levels in preterm neonates receiving long-term parenteral vitamin A supplementation
  1. H Ord,
  2. C Harper,
  3. F Pearson,
  4. L V Marino,
  5. A Saha,
  6. A Batra
  1. Department of Paediatrics, University Hospital Southampton NHS Foundation Trust, Southampton, UK
  1. Correspondence to Dr H Ord, Department of Paediatrics, MP44, G level East wing, University Hospital Southampton NHS Foundation Trust, Southampton, S016 6YD, UK; Hord53{at}

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The provision of parenteral nutrition (PN) forms part of standard practice in neonatal intensive care units, supporting growth in preterm infants until such time that they can be fully enterally nourished, representing the largest single patient group receiving PN.1 There is a paucity of evidence concerning the recommended micronutrient intake required. Vitamin A plays a vital role in growth and development of many organ systems, and deficiency of vitamin A increases the risk of retinopathy of prematurity and chronic lung disease.2 The current consensus guidelines recommend 700–1500 IU/kg/day of vitamin A.3 Vitlipid N …

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