1. Department of Life Science, Sogang University, Seoul, Republic of Korea.
2. Department of Genetic Epidemiology, SNP Genetics, Inc., Seoul, Republic of Korea.
3. Division of Allergy and Respiratory Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea.
4. Division of Allergy and Respiratory Disease, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea.
5. Division of Internal Medicine, Chungbuk National University, Cheongju, Republic of Korea.
6. Department of Allergy, Chonnam National University, Gwangju, Republic of Korea.
7. Department of Internal Medicine and Institute of Allergy and Clinical Immunology, Seoul National University, Seoul, Republic of Korea.
8. Department of Internal Medicine, Chung-Ang University Yongsan Hospital, Seoul, Republic of Korea.
9. Department of Physiology, College of Medicine, Hanyang University, Seoul, Republic of Korea.