1. Center for Transplantation Sciences Harvard Medical SchoolMassachusetts General Hospital Boston MassachusettsUSA
2. Division of Plastic and Reconstructive Surgery Massachusetts General Hospital Boston MassachusettsUSA
3. Canniesburn Plastic Surgery Unit Glasgow Royal Infirmary Glasgow Scotland
4. Department of Pathology Massachusetts General Hospital Boston MassachusettsUSA
5. Columbia Center for Translational Immunology Columbia University Medical Center New York New YorkUSA
6. Department of Biology Emmanuel College Boston MassachusettsUSA
7. Shriners Hospital for Children Boston MassachusettsUSA