作者单位:Internal Medicine, WCU Program, Kyungpook National University School of Medicine, Daegu 700-422[1]Skeletal Diseases Genome Research Center, Kyungpook National University and Hospital, Daegu 700-412[2]Medical Research Center for Gene Regulation, Chonnam National University Medical School, Gwangju[3]Department of Mechanical Engineering, Pohang University of Science and Technology, Pohang 790-784[4]