1. CRONICAS Center of Excellence in Chronic Diseases, Universidad Peruana Cayetano Heredia, Lima, Peru,
2. Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK,
3. Department of International Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, MD, USA and
4. Department of Medicine, School of Medicine, Universidad Peruana Cayetano Heredia, Lima, Peru