1. Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, Korea.
2. Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea.
3. Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
4. Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Korea.
5. Department of Internal Medicine, Kyungpook National University Hospital, Daegu, Korea.
6. Department of Internal Medicine, Ajou University School of Medicine, Suwon, Korea.
7. Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
8. Department of Internal Medicine, Pusan National University Hospital, Busan, Korea.
9. Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
10. Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea.
11. Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
12. Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Korea.
13. Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea.
14. Department of Internal Medicine, Hanyang University College of Medicine, Seoul, Korea.
15. Department of Internal Medicine, Inha University School of Medicine, Seoul, Korea.
16. Department of Internal Medicine, Inje University Pusan Paik Hospital, Busan, Korea.
17. Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea.
18. Department of Internal Medicine, Jeju National University Hospital, Jeju, Korea.
19. Department of Internal Medicine, Dongguk University Ilsan Hospital, Goyang, Korea.
20. Department of Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea.
21. Department of Pharmacology, The Catholic University of Korea, College of Medicine, Seoul, Korea.
22. Department of Internal Medicine, Ewha Womans University Hospital, Seoul, Korea.
23. Department of Internal Medicine, Chonbuk National University Hospital, Jeonju, Korea.
24. Department of Internal Medicine, Chonnam National University Hospital, Gwangju, Korea.
25. Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea.
26. Department of Internal Medicine Chosun University Hospital, Gwangju, Korea.
27. Department of Internal medicine, Medical School of Yeungnam University, Daegu, Korea.
28. Department of Internal Medicine, Kosin University College of Medicine, Busan Korea.
29. Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.
30. Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.
31. Department of Pulmonology and Allergy, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea.
32. Allergy and Clinical Immunology Research Center, Hallym University College of Medicine, Chuncheon, Korea.