1. Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Bucheon St. Mary's Hospital, The Catholic University of Korea, Bucheon 420-717, Korea.
2. Clinical Neuroscience, Max Planck Institute of Experimental Medicine, Göttingen, Germany DFG Center for Nanoscale Microscopy & Molecular Physiology of the Brain (CNMPB), Göttingen 37075, Germany.
3. Department of Physiology, College of Medicine, The Catholic University of Korea, Seoul 137-701, Korea.
4. Division of Structural and Functional Genomics, Center for Genome Science, National Institute of Health, Cheongju 361-951, Korea.
5. Division of Metabolic Disease, Center for Biomedical Sicence, National Institutes of Health, Cheongju 361-951, Korea.
6. Department in Preventive Medicine, Ajou University School of Medicine, Suwon 443-749, Korea.
7. Division of Endocrinology and Metabolism, Department of Internal Medicine, College of Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul 137-701, Korea.
8. Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University College of Medicine, Bucheon 420-767, Korea.
9. Department of Psychiatry, College of Medicine, The Catholic University of Korea, Seoul 137-701, Korea.