RT Book, Section A1 Federico, Monica J. A1 Baker, Christopher D. A1 Deboer, Emily M. A1 Halbower, Ann C. A1 Kupfer, Oren A1 Martiniano, Stacey L. A1 Sagel, Scott D. A1 Stillwell, Paul A1 Zemanick, Edith T. A1 Caraballo, Michelle A1 Hawkins, Stephen A2 Hay, Jr., William W. A2 Levin, Myron J. A2 Deterding, Robin R. A2 Abzug, Mark J. SR Print(0) ID 1153308493 T1 Respiratory Tract & Mediastinum T2 Current Diagnosis & Treatment: Pediatrics, 24e YR 2018 FD 2018 PB McGraw-Hill Education PP New York, NY SN 9781259862908 LK accessmedicine.mhmedical.com/content.aspx?aid=1153308493 RD 2022/05/24 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.