Charles and All - A good question. No, I am not taking any anti-rejection medications. I was part of a sub-control group. There were 5 or 6 of us who received pig cells that were specially "masked" so that the body's immune system did not recognize them as foreign. It apparently worked; I have no problems of any kind. And it's been over 5 years since the procedure. I'm very grateful for this since the immuno-suppresion drugs create as many problems as they solve. Go to this URL for an online diary about this technology: <A HREF="http://www.geocities.com/jimcfinn/index.html"> http://www.geocities.com/jimcfinn/index.html</A> Regards - Jim Finn ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn