1. Department of Animal Science & Technology, Chung-Ang University, Anseong, Gyeonggi-do 456-756, Republic of Korea
2. Department of Cancer Biology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
3. National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Chungcheongbuk-do, Republic of Korea
4. Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon, Chungcheongnam-do, Republic of Korea