Funding for this research was provided by:
Rheinische Friedrich-Wilhelms-Universität Bonn
Received: 24 December 2020
Accepted: 13 April 2021
First Online: 4 May 2021
: Ethics approval has been obtained from the Research Ethics Committee, Center for Development Research (ZEF), University of Bonn, Germany, and the Institutional Ethics Committee of the Indian Institute of Public Health Gandhinagar, India.
: Not applicable
: The authors declare that they have no competing interests. The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.