1. Department of International
Health, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Maryland 21205, United States
2. UNICEF Bangladesh, Dhaka, Bangladesh
3. Department
of Environmental Health
Sciences, Mailman School of Public Health, Columbia University, New York, New York 10032, United States
4. Participatory Management Initiative for Development (PMID), Dhaka, Bangladesh
5. Columbia University Arsenic & Health Research in Bangladesh, Dhaka, Bangladesh
6. Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York 10964, United
States