Xenotransplantation continues to present daunting scientific hurdles but there is now a genuine prospect for clinical application. There are also significant and unknown risks. We call for a moratorium on all human xenotransplantation and offer a strategy for balancing the ethical, medical, scientific and societal demands of xenotransplantation prior to human clinical trials.
- F.H. Bach
- J.A. Fishman
- H.V. Fineberg
