Contingencies on the workshop for bronchopulmonary dysplasia classification

We read with interest the executive summary of the workshop on bronchopulmonary dysplasia (BPD).1 The authors provided a comprehensive review on the incidence and pathogenesis of BPD and summarized the historical aspects in the definition of BPD. The workshop suggested refining the definition of BPD to include different grades based on the amount of respiratory support that an infant receives.

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