Funding for this research was provided by:
EU FP7 (261304)
Received: 4 January 2019
Accepted: 13 January 2019
First Online: 24 January 2019
Ethics approval and consent to participate
: Ethical approval was granted by the Indian Institute of Public Health, Gandhinagar, Gujarat, India with the ethical approval number TRC-IEC No:23/2012 & KI: 2010/1671–31/5. I. All study participants completed written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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