Editor—We read with interest the recent annotation by Rennie and Bokhari1 on the subject of recent advances in neonatology. The piece was introduced by a foreword indicating that the article was aimed at the non-specialist. It seems particularly important therefore that the information contained should have been clear and well balanced; we feel that this was not the case with regard to inhaled nitric oxide (NO).

In relation to mature infants, a number of studies have shown that short term improvements in oxygenation can be achieved in …