1. Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul, Korea.
2. Department of Internal Medicine, Chungbuk National University Hospital, Cheongju, Korea.
3. Regional Pharmacovigilance Center, Chungbuk National University Hospital, Cheongju, Korea.
4. Department of Internal Medicine, Kyung-Hee University Hospital, Seoul, Korea.
5. Regional Pharmacovigilance Center, Seoul National University Hospital, Seoul, Korea.
6. Drug Safety Monitoring Center, Seoul National University Hospital, Seoul, Korea.
7. Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Chilgok Hospital, Daegu, Korea.
8. Department of Internal Medicine, Seoul Metropolitan Government-Seoul National University Boramae Medical Center, Seoul, Korea.
9. College of Pharmacy, Seoul National University, Seoul, Korea.
10. Division of Allergy and Clinical Immunology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea.