1. Division of Rhinology, Department of Otolaryngology–Head and Neck Surgery China Medical University Hospital Taichung Taiwan
2. Division of Rhinology, Department of Otolaryngology–Head and Neck Surgery Asia University Hospital Taichung Taiwan
3. Graduate Institute of Biomedical Sciences China Medical University Taichung Taiwan
4. Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics Stanford University School of Medicine Stanford California USA
5. School of Medicine China Medical University Taichung Taiwan
6. Department of Health Services Administration China Medical University Taichung Taiwan