Thank you for the opportunity to reply to the letter from Dr Barbi and colleagues regarding the definition of bronchiolitis. We agree that it is important to have definitions that are consistently used and best reflect the condition. We disagree that we missed this critical issue. In fact, in our discussion we state that "we used a more liberal definition of bronchiolitis"1(p963) and we caution the reader to interpret the results in light of this.
Klassen TP, Hartling L, Wiebe N, Russell K, Patel H. Nomina Sunt Consequentia Rerum: Time for a Change in the Definition of Bronchiolitis?—Reply. Arch Pediatr Adolesc Med. 2004;158(4):403. doi:10.1001/archpedi.158.4.403-b