1. Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea.
2. Department of Internal Medicine, Seoul National University College of Medicine, Seoul 03080, Korea.
3. Department of Biochemistry, College of Medicine, Chungnam National University, Daejeon 35015, Korea.
4. Research Center for Endocrine and Metabolic Diseases, Chungnam National University School of Medicine, Daejeon 35015, Korea.
5. Center for Research Equipment, Korea Basic Science Institute, Cheongju 28119, Korea.
6. Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea.
7. Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Alabama School of Medicine, Birmingham, AL 35294, USA.
8. Department of Preventive Medicine, Ajou University School of Medicine, Suwon 16499, Korea.
9. Department of Developmental Biology and Stanford Diabetes Research Center, Stanford University School of Medicine, Stanford, CA 94305, USA.
10. Diabetes Center, Hormone Research Institute and Department of Medicine, University of California San Francisco, San Francisco, CA 94143, USA.