RT Book, Section A1 Federico, Monica J. A1 Baker, Christopher D. A1 Deboer, Emily M. A1 Kupfer, Oren A1 Martiniano, Stacey L. A1 Stillwell, Paul A1 Hawkins, Stephen A1 Liptzin, Deborah A2 Hay Jr., William W. A2 Levin, Myron J. A2 Abzug, Mark J. A2 Bunik, Maya SR Print(0) ID 1172105771 T1 Respiratory Tract & Mediastinum T2 Current Diagnosis & Treatment: Pediatrics, 25e YR 2020 FD 2020 PB McGraw-Hill Education PP New York, NY SN 9781260457827 LK accesspediatrics.mhmedical.com/content.aspx?aid=1172105771 RD 2024/10/08 AB Pediatric pulmonary diseases account for almost 50% of deaths in children younger than 1 year and about 20% of all hospitalizations of children younger than 15 years. Approximately 7% of children have a chronic disorder of the lower respiratory system. Understanding the pathophysiology of many pediatric pulmonary diseases requires an appreciation of the normal growth and development of the lung.