1. Department of Internal Medicine, Jeju National University School of Medicine, Jeju, Korea.
2. Department of Microbiology and Immunology, Jeju National University School of Medicine, Jeju, Korea.
3. Department of Laboratory Medicine, Jeju National University School of Medicine, Jeju, Korea.
4. Department of Dermatology, Jeju National University School of Medicine, Jeju, Korea.