Affiliation: | 1. Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, UK;2. School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, UK;3. Health Economics Unit, Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, UK;4. College of Science and Technology, University of Rwanda, Avenue de l''Armee, P.O. Box 3900, Rwanda |