1. Ghana Health Service, Headquarters, Accra, Ghana
2. College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, Queensland 4811, Australia
3. Fred Newton Binka School of Public Health, University of Health, and Allied Sciences, Hohoe, Ghana
4. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands
5. Department of Epidemiology and Biostatistics, Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
6. Centre for Primary Health Care and Equity/Social Policy Research Centre, University of New South Wales, Sydney, Australia