1. Department of Public Health, Hengshan Township Public Health Center, Hsinchu, Taiwan
2. Institute of Public Health, National Yang-Ming University, Taipei, Taiwan
3. Department of Psychiatry, Taipei Tzu Chi Hospital, Taipei, Taiwan
4. Department of Nursing, Ching Kuo Institute of Management and Health, Keelung, Taiwan
5. Institute of Community Health Care, National Yang-Ming University, Taipei, Taiwan