1. Nuffield Centre for International Health and Development, Leeds Institute of Health Sciences, University of Leeds, Leeds, UK
2. Tameside and Glossop Integrated Care National Health Service (NHS) Foundation Trust, Manchester, UK
3. Community Medicine and Public Health, College of Medicine, Hadramaut University, Hadramaut, Yemen
4. Field Epidemiology Training Program (FETP), Aden, Yemen
5. College of Medicine, Hadhramaut University, Hadramaut, Yemen
6. Freelance Public Health Expert, Aden, Yemen
7. Health Sciences Department, Faculty of Social Sciences, University of Tampere, Tampere, Finland
8. Focus Group International LTD, Aden, Yemen
9. Senior Public Health Adviser, Ministry of Public Health & Population, Aden, Yemen