1. Department of Ophthalmology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
2. Department of Optometry, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan
3. School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
4. Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
5. Institute of Health Care Management, National Sun Yat-Sen University, Kaohsiung, Taiwan
6. Department of Nursing, Meiho University, Pingtung, Taiwan
7. Department of Administration, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan