The Problem of the Preterm Lung: Definitions, History, Epidemiology.- Long-Term Structural Changes in the Preterm Lung.- The Bronchopulmonary Dysplasia Diagnosis: Definitions, Utility, Limitations.- Infection: Catalyst and Consequences of Pulmonary Morbidity.- Why Do Preterm Infants Wheeze: Clues from the Lab.- Why Do Preterm Infants Wheeze: Clues from Epidemiology.- Pulmonary Hypertension.- Airway Outcomes.- Sleep.- The Adolescent and Young Adult Patient.- Diagnostic Modalities: Pulmonary Function Testing and Imaging.- Prevention and Treatment of Post-NICU Morbidity.- Healthcare Utilization and Economic Impact