1. Department of Cardiothoracic Surgery; University of Pittsburgh Medical Center; Pittsburgh PA
2. Division of Thoracic Surgery; Kobe University Graduate School of Medicine; Kobe Japan
3. Department of Pathology; Division of Transplantation, and Thomas E. Starzl Transplantation Institute; University of Pittsburgh; Pittsburgh PA
4. Department of Developmental Biology; University of Pittsburgh; Pittsburgh PA
5. Rangos Research Center Animal Imaging Core; Children's Hospital of Pittsburgh of UPMC; Pittsburgh PA