1. School of Nursing, College of Nursing, Taipei Medical University , Taipei, Taiwan , China
2. Faculty of Nursing, University of Medicine and Pharmacy, Hue University , Hue City , Vietnam
3. Institute of Epidemiology and Preventive Medicine, National Taiwan University , Taipei, Taiwan , China
4. Department of Dentistry, National Taiwan University Hospital, National Taiwan University , Taipei, Taiwan , China
5. Institute of Hospital and Health Care Administration, Community Medicine Research Center, Preventive Medicine Research Center, National Yang-Ming University , Taipei, Taiwan , China
6. Department of Nursing, Taipei Medical University Hospital , Taipei City, Taiwan , China