A magazine featuring South Korean stem cell scientist Hwang Woo-suk (R) and Roh Sung-il, a collaborator of Hwang, on its cover sits on display at a book store in Seoul December 18, 2005. Hwang, whose work is under intense scrutiny, hit back at his accusers on Friday, saying he had proof his team had made patient-tailored stem cells this year and he would produce the evidence soon. REUTERS/You Sung-Ho
