I have read with considerable interest the paper by N Yukawa et al concerning intra-alveolar haemorrhage in infant deaths,¹ and Professor Berry's editorial response. I also applaud the authors' ambition to bring some scientific objectivity to this controversial issue.J Clin Pathol 2000;53:484

The results of their investigation are extremely difficult to interpret, however, because the authors have carried out morphometric analysis of the area of the alveolar space occupied by blood when biased by some prior knowledge of …