Funding for this research was provided by:
Indian Council of Medical Research (5/4-5/126/2013-NCD-1)
Received: 22 November 2018
Accepted: 8 January 2020
First Online: 4 February 2020
Ethics approval and consent to participate
: The present study has the approval of the Institutional Local Ethical Committee, Uttar Pradesh University of Medical Sciences and informed consent was obtained from all the participants.
: Not Applicable.
: The authors declare that they have no competing interests.