Human organ transplantation : an overview -- An introduction to xenotransplantation -- The regulation of xenotransplantation in the United Kingdom : the background reports -- The regulation of xenotransplantation in the United Kingdom : the work of Ukxira -- A review of national and international responses to xenotransplantation -- The ethical dimensions of xenotransplantation -- Legal issues in xenotransplantation (part 1) -- Legal issues in xenotransplantation (part 2) -- Xenotransplantation - what next?