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In a message dated 8/7/01 3:25:16 PM, [log in to unmask] writes: << Adult stem cells have already taken on certain characteristics which limit what type of tissue they can become. >> As a potential patient, how many different kinds of tissue would you want from any cells that have been selected for your benefit? See Science News, July 7, 2001, Vol. 160 No. 1, Page 13, concerning cells in a lab that were supposed to be making a chicken head started instead to make a heart? ---------------------------------------------------------------------- To sign-off Parkinsn send a message to: mailto:[log in to unmask] In the body of the message put: signoff parkinsn