1. Division of Infectious Diseases, Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Korea.
2. Division of Infectious Diseases, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
3. Divison of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea.
4. Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea.
5. Department of Psychiatry, National Medical Center, Seoul, Korea.
6. Division of Infectious Diseases, Department of Internal Medicine, Soonchunhyang University Seoul Hospital, Soonchunhyang University College of Medicine, Seoul, Korea.
7. Division of Infectious Diseases, Department of Internal Medicine, College of Medicine, Chosun University, Gwangju, Korea.
8. Department of Neurology, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.
9. Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.