1. Department of Psychiatry, Yonsei University College of Medicine, Seoul, Korea.
2. Department of Internal Medicine, Dongtan Jeil Women's Hospital & Sangwoon Medical Institute, Hwasung, Korea.
3. Severance Institute for Vascular and Metabolic Research, Yonsei University College of Medicine, Seoul, Korea.
4. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.