1. Open Development LLC, and Public Health Foundation of Bangladesh, 54, Inner Circular Road, Dhaka 1000, Bangladesh
2. Department of Public Health and Sports Science, Faculty of Health and Occupational Studies, University of Gävle, Kungsbacksvägen 47, 80176 Gävle, Sweden
3. Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne 3800, Australia