1. Department of Otolaryngology, Buddhist Dalin Tzu Chi General Hospital , Chiayi , Taiwan
2. School of Medicine, Tzu Chi University , Hualian , Taiwan
3. Department of Research, Buddhist Dalin Tzu Chi General Hospital , Chiayi , Taiwan
4. Department of Pathology, Buddhist Dalin Tzu Chi General Hospital , Chiayi , Taiwan
5. Division of Hematology-Oncology, Department of Internal Medicine, Buddhist Dalin Tzu Chi General Hospital , Chiayi , Taiwan