Dr Mayer is Attending Physician, Division of Pulmonology at the Children’s Hospital of Philadelphia and Professor of Clinical Pediatrics, at the Perelman School of Medicine, University of Pennsylvania. He has been managing patients with pediatric neuromuscular disease over the last 20 years and has become a recognized international expert in the field, has served on committees to determine standard of care practices and has lectured extensively on a variety of different topics in this field.