Dr. Oscar Henry Mayer is a Professor of Clinical Pediatrics at The Perelman School of Medicine at the University of Pennsylvania, and an Attending Pulmonologist within the Division of Pulmonology at the Children’s Hospital of Philadelphia (CHOP). He received and Bachelor of Science degree from Middlebury College, and his Medical Doctorate from the University of Pittsburgh. He then completed his pediatrics residency at the J W Riley Hospital for Children and then a Fellowship in Pediatric Pulmonology at the Children’s Hospital of Philadelphia.  He has been the medical director of the CHOP Pulmonary Function Testing (PFT) laboratory for the last 16 years. He has been actively involved in the specialized care of patients with neuromuscular disease and complex chest wall and spinal deformity. He has been the pulmonologist in the Neuromuscular Center for the last 20 years and in the Center for Thoracic Insufficiency Syndrome since its inception 14 years. He is on a number of national committees and study groups involved in pediatric pulmonary function testing, the assessment and management of children with complex thoracospinal disorders and neuromuscular disorders, on which he has lectured nationally and internationally and has published over 90 journal articles and book chapters on his research and clinical interest.