(1) IRHCTT (The International Registry on Hand and Composite Tissue Transplantation):
https://www.handregistry.com/
(2) Hand transplant - Mayo Clinic:
https://www.mayoclinic.org/departments-centers/transplant-center/hand-transplant
(3)http://www.childrenshospital.org/centers-and-services/programs/f-_-n/hand-transplant-program