| I guess I'm putting my money on xenotransplantation but I'd have to say that the other option is stem cells. |
| This distinguishes them from the various organs used for xenotransplantation. |
| This series of profoundly unsuccessful experiments has not enhanced the credibility of xenotransplantation as a viable medical treatment. |
| This reaction has been a major obstacle for xenotransplantation, as has the ethical dilemma associated with cross species transplantation. |
| Research on porcine cells, tissues, and organs in xenotransplantation should continue if certain conditions are met. |
| Pigs are the preferred species for xenotransplantation on scientific, practical and ethical grounds. |
