Anastassios C. Koumbourlis, M.D., M.P.H. is Professor of Pediatrics (Pulmonology) at George Washington University, School of Medicine and Health Sciences and Chief of the Division of Pulmonary & Sleep Medicine at Children’s National Medical Center in Washington DC, USA. He received his Medical Degree from the National University of Athens, School of Medicine in his native Greece, and a Master of Public Health from the Johns Hopkins University in Baltimore, MD. He trained in Preventive Medicine at Johns Hopkins University, Pediatrics (St Agnes Hospital), and fellowships in Pediatric Pulmonology & Pediatric Critical Care at the University of Pittsburgh. He was in the faculty of the College of Physicians & Surgeons of Columbia University and of the Albert Einstein College of Medicine. His research has focused on the study of lung mechanics in health and in disease. His clinical interests include flexible bronchoscopy, congenital lung & airway abnormalities, neuromuscular and skeletal disorders and sickle cell disease. He has organized postgraduate courses, and scientific symposia in many international conferences including CIPP. He has edited/co-edited/published several books in various pulmonary topics, including the award winning book on Pediatric Bronchoscopy.