http://www.cell.com/content/article/abstract?uid=PIIS0092867404007135
http://www.cell.com/
http://www.wired.com/news/medtech/0,1286,64749,00.html?tw=wn_tophead_3
http://www.wired.com/news/images/0,2334,64749-14130,00.html
http://www.wired.com/news/mediaplayer/0,2108,64751-64751-virus_qt_hi,00.html