1. Department of Emergency Medicine, Kaohsiung Armed Forces General Hospital , Kaohsiung City 802301 , Taiwan
2. Department of Emergency Medicine, Kaohsiung Veterans General Hospital , Kaohsiung City 813414 , Taiwan
3. Department of Medical Education and Research, Kaohsiung Veterans General Hospital , Kaohsiung City 813414 , Taiwan
4. Department of Health Care Management, National Sun Yat-sen University , Kaohsiung City 804201 , Taiwan
5. Department of Nursing, Meiho University , Pingtung County 912009 , Taiwan
6. Department of Recreation and Sports Management, Tajen University , Pingtung County 907101 , Taiwan
7. Department of Administration, Kaohsiung Veterans General Hospital , Kaohsiung City 813414 , Taiwan