I am not familiar on transplantation medicine or surgery during the course of study. So I just came to know the great man who are providing his expertise to serve our nation.
Sir Roy had involved in early days of organ transplantations. Together, as professor in Cambridge University lab had conducted numerous research on animal models and clinical trials. He and his team research on application of Azathioprine and later advocate use of cyclosporin, made organ transplantation feasible and practical way of treatment.
Sir Roy was overlooked by the Nobel committee when they give the award only to the kidney transplant surgeon.
In my humble opinion, it’s seem that breaking the immunological barrier of organ transplantation plays even far more important than overcome surgical technique.