A patient's acceptance of transplanted organs and tissues may be enhanced by treating donor specific blood with a suitable dose of ultraviolet radiation for an appropriate period of time, transfusing the irradiated blood into the patient during a suitable pretransplantation time period and then transplanting...http://www.google.ca/patents/US4946438?utm_source=gb-gplus-sharePatent US4946438 - Process for development of acceptance of transplanted organs and tissues
