1 | Department of Public Health, Chung Shan Medical University, Taichung, Taiwan |
2 | Department of Family and Community Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan, ROC |
3 | School of Oral Hygiene, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan |
4 | Department of Health Care Management, College of Management, Chang Gung University, Taoyuan, Taiwan |
5 | Department of Health Industry Management, Kainan University, Taoyuan, Taiwan |
6 | Graduate Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan |