1. Centre for Economic Demography, Lund University, Lund, Sweden
2. Department of Economic History, Lund University, Lund, Sweden
3. Institute of Public Health, Heidelberg University, Heidelberg, Germany
4. Department of Social and Behavioral Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, USA
5. Center for Population and Development Studies, Harvard T.H. Chan School of Public Health, Cambridge, MA, USA