Dr. Sweet received his undergraduate, graduate and medical degrees at the University of Michigan. He was a pediatric resident and pediatric pulmonology fellow at Washington University before joining the faculty in 1996. Dr. Sweet became medical director of the Pediatric Lung Transplant Program in 1999. He is board certified in Pediatric Pulmonology by the American Board of Pediatrics. Past honors include the Parker B. Francis Fellowship in Pulmonary Research, Scholar of the Child Health Research Center of Excellence in Developmental Biology, Washington University, Medical Scientist Award for Excellence, University of Michigan. Professional Societies include the International Society for Heart and Lung Transplantation, the American Thoracic Society and the American Academy of Pediatrics. Dr. Sweet's primary research is focused on improved understanding of the important factors determining outcome after lung transplantation in children. He is PI of an NIH funded multicenter collaborative study of the role B-cell immunity plays in lung transplant outcomes.Dr. Sweet has held multiple leadership roles in the Organ Transplantation and Procurement Network (OPTN) / United Network for Organ Sharing (UNOS) including Chair of the Pediatric Transplantation Committee and Policy Oversight Committee as well as Secretary and President of the OPTN/UNOS Board of Directors. He has also held multiple leadership roles in the International Society for Heart and Lung Transplantation (ISHLT) including Secretary/Treasurer and Vice-President of the ISHLT Board. Finally, he is a Past President of the Missouri Chapter of the American Academy of Pediatrics (AAP) and past Chair of the AAP National Nominating Committee. Dr. Sweet's other interests include ethics and policies related to organ allocation and the use of information technology in medicine.