1. Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.
2. Department of Psychiatry and Behavioral Sciences, Ajou University School of Medicine, Suwon, Korea.
3. Department of Internal Medicine, Wonju Severance Christian Hospital, Wonju, Korea.
4. Department of Internal Medicine, SMG-SNU Boramae Medical Center, Seoul, Korea.
5. Division of Allergy, Asthma, and Clinical Immunology, Chonnam National University Medical School, Gwangju, Korea.
6. Division of Allergy and Clinical Immunology, Seoul National University College of Medicine, Seoul, Korea.
7. Division of Pulmonary, Allergy, and Critical Care Medicine, Hallym University Dongtan Sacred Heart Hospital, Hwaseong, Korea.
8. Department of Internal Medicine, Inha University School of Medicine, Incheon, Korea.
9. Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
10. Division of Pulmonary, Allergy, and Critical Care Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
11. Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.
12. Department of Allergy and Clinical Immunology, Asan Medical Center, Seoul, Korea.
13. Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea.
14. Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
15. Division of Allergy and Immunology, Yonsei University College of Medicine, Seoul, Korea.
16. Division of Pulmonary, Allergy and Critical Care Medicine, CHA University, Seongnam, Korea.
17. Clinical Trial Center, Ajou University Hospital, Suwon, Korea.