1. International Health Program, College of Medicine, Institute of Public Health, National Yang Ming Chiao Tung University, Taipei, Taiwan, R.O.C.
2. Department of Community Health Nursing Science, Faculty of Health Sciences, University of Eswatini, Mbabane, Eswatini
3. HIV Program (HIV Prevention), Eswatini Ministry of Health, Mbabane, Eswatini
4. College of Medicine, Institute of Health and Welfare Policy, National Yang-Ming University, Taipei, Taiwan, R.O.C