1. Community Medicine Research Center and Institute of Public Health National Yang-Ming University Taipei, Taiwan Department of Otolaryngology and the Cancer Center Buddhist Dalin Tzu Chi General Hospital Chiayi, Taiwan School of Medicine Tzu Chi University Hualian, Taiwan (Lee)
2. Community Medicine Research Center and Institute of Public Health National Yang-Ming University Taipei, Taiwan (Chou)
3. Division of Neurology Department of Internal Medicine Buddhist Dalin Tzu Chi General Hospital Chiayi, Taiwan (Huang)