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Plasma vitamin K1 concentrations in cystic fibrosis.
  1. I A Choonara,
  2. M J Winn,
  3. B K Park,
  4. J M Littlewood
  1. Department of Paediatrics and Child Health, St James's University Hospital, Leeds.

    Abstract

    Plasma concentrations of vitamin K1 were similar in 37 patients with cystic fibrosis (median 46 ng/l) and 16 controls (49 ng/l). The plasma concentrations were lower than those previously described in adults, but higher than in neonates. There was no association between an increase in prothrombin time and vitamin K1 plasma concentration.

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