1. Research Centre on Health, Work and Environment (CISTA), National Autonomous University of Nicaragua at León (UNAN-León), León, Nicaragua
2. Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
3. Centre for Nephrology, University College London, London, UK
4. Centre for Global NCDs, London School of Hygiene and Tropical Medicine, London, UK