South Korea's stem cell scientist Hwang Woo-suk attends a news conference at the Seoul National University in Seoul December 16, 2005. (Kim Kyung-Hoon/Reuters)
South Korea's stem cell scientist Hwang Woo-suk attends a news conference at the Seoul National University in Seoul December 16, 2005. (Kim Kyung-Hoon/Reuters)
Roh Sung-il, chairman of the board at Mizmedi Hospital and a co-author of the article, wipes tears during his press conference in Seoul, Friday, Dec. 16, 2005. Roh repeated his accusations that South Korean stem cell pioneer Hwang Woo-suk had pressured a lab worker to forge evidence.(AP Photo/Yonhap, Seong Yeon-jae)