1. School of Economics, University of Nairobi, Nairobi, Kenya
2. Futures Health Economics and Metric
3. Department of Non-communicable Diseases, Ministry of Health, Nairobi, Kenya
4. Centre for Respiratory Diseases Research, Kenya Medical Research Institute, Nairobi, Kenya
5. African Population & Health Research Centre, Nairobi, Kenya
6. Moi Teaching and Referral Hospital, Eldoret, Kenya
7. Kenyatta National Hospital, Nairobi, Kenya
8. Division of Public Health Medicine, School of Nursing and Public Health, University of KwaZulu-Natal, Durban, South Africa