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Correspondence
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Volume 357:1444-1445 October 4, 2007 Number 14
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Inhaled Nitric Oxide in Preterm Infants — Correction

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 by Ballard, R. A.
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To the Editor: My coauthors and I wish to correct data reported in our article on inhaled nitric oxide in preterm infants undergoing mechanical ventilation (July 27, 2006).1 During further data review, we found that one infant in the placebo group in whom bronchopulmonary dysplasia developed was incorrectly categorized as surviving without chronic lung disease. Nine additional infants were part of multiple births and thus received by design the same treatment as the earlier enrolled sibling. Because siblings share both genetic and in utero environmental factors related to the occurrence of chronic lung disease, they represent clustered data. Accordingly, we . . . [Full Text of this Article]


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