SEOUL, South Korea, Dec. 15 - Hwang Woo Suk, the scientist who stunned the world by announcing breakthroughs in stem cell and cloning research, faked a landmark research paper, one of his South Korean co-authors said today in television and newspaper interviews. Dr. Hwang and his aides, who had vehemently defended the paper published in the journal Science in June, were not immediately available for comment on the assertion by Roh Sung Il, , one of Dr. Hwang's 24 co-authors for the June paper, that the scientific finding was falsified. Mr. Roh, the administrator of MizMedi Hospital in Seoul, told...