Funding for this research was provided by:
Ministry of Health and Family Welfare (MoHFW), Govt of India (Dy.No.C-707, Dy.No.C-707)
Received: 5 June 2021
Accepted: 18 May 2022
First Online: 30 May 2022
: This study was approved by the Institutional Ethics Committee of the Coordinating Centre, ICMR-NCDIR. Approval no: NCDIR/IEC/2017/4 dated 03 February 2017. Every implementing agency obtained its ethics approval from its own Institutional Ethics Committee before starting the survey. All adult participants were enrolled only after obtaining written informed consent. All methods were carried out following ICMR ethical guidelines and regulations as nationally applicable.
: Not applicable.
: None declared.