1. From the Departments of Environmental Health Sciences (MVG, VS, JRP, VI, FP, and JHG), Biostatistics (XL and DL), and Epidemiology (PF-L and HA), Mailman School of Public Health, Columbia University, New York, NY; the Columbia University Arsenic Project in Bangladesh, Dhaka, Bangladesh (SA and MI); the Department of Health Studies, University of Chicago, Chicago, IL (HA); and the Department of Ph