Home » + English • Stem Cells » Cells that know what to do + a printer = new body part Cells that know what to do + a printer = new body part By Andres Trevino October 23, 2007 + English Stem Cells No comments Tweet Pin It Your browser does not support inline frames or is currently configured not to display inline frames. Related Posts Conner is officially engrafted! Don’t give up! I believe in you all Prayers for Simon