1. Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, Korea.
2. Department of Allergy, Asthma and Clinical Immunology, Chonnam National University Medical School, Gwangju, Korea.
3. Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea.
4. Department of Cardiology, Ajou University School of Medicine, Suwon, Korea.