Korean TV station MBC Tuesday dealt another blow to the country’s cloning scientist Hwang Woo-suk claiming he had forced his junior researcher to contribute eggs by using authorship as a carrot. MBC made the claim in its investigative program, ``PD Notebook,’’ which resumed after a four-week suspension caused by its aggressive position on Hwang’s controversial stem cell research. ``Hwang’s team used more than 1,600 eggs obtained from a total of 86 donors for their stem cell papers featured by the U.S. journal Science in 2004 and 2005,’’ MBC producer Choi Seung-ho said. Hwang claimed to have harvested the first-ever...