Supporters of stem-cell scientist Hwang Woo-suk, who was a professor at Seoul National University, participate in a candle light vigil in Seoul January 11, 2006. Hundreds of supporters of Hwang gathered in central Seoul on Wednesday to insist that the university give Hwang an opportunity to reproduce his work. The president of the university apologised on Wednesday for scientific fraud at the school, saying two fabricated papers on stem cell research had embarrassed the country and science. REUTERS/Lee Jae-Won