1. Society for Health and Demographic Surveillance, Suri, West Bengal, India
2. Department of Global Health and Population, Harvard TH Chan School of Public Health, Boston, MA, USA
3. Department of Economics, University of Göttingen, Göttingen, Germany
4. Centre for Modern Indian Studies, University of Göttingen, Göttingen, Germany
5. Department of Nutrition, Harvard TH Chan School of Public Health, Boston, MA, USA
6. Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA