In Reply.—Dr Özsoylu raised an interesting point regarding our article. We believe, however, that the patient whom we described did not have hemolytic disease. He had not been jaundiced at birth, and no evidence of hemolysis had been noted during the three-year follow-up. Moreover, the raised reticulocyte count was noted only once, and we assumed that it was caused by the quantities of blood withdrawn from the patient for a thorough investigation of his disease. This child was clinically highly allergic and initially had episodes of bronchial asthma, urticaria, and similar rashes, which may have accounted for the eosinophilia.