1. Department of Internal Medicine, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan
2. Department of Business Management, National Sun Yat-sen University, Kaohsiung, Taiwan
3. Department of Marketing Management, SHU-TE University, Kaohsiung, Taiwan
4. Institute of Public Health, National Yang-Ming Chiao Tung University, Taipei, Taiwan
5. Department of Hotel Management, National Kaohsiung University of Hospitality and Tourism, Kaohsiung, Taiwan