Received: 13 February 2020
Accepted: 10 August 2020
First Online: 1 September 2020
Ethics approval and consent to participate
: Before the commencement of this study, ethical clearance and prior permission were obtained from the Institutional Ethics Review Committee (Ethical No.: VU/R/Ethical/3-(ii)/2012; dated: 22 March 2012). The participants agreeing to take part in the study, written consent was obtained from them during household visits.
: Not applicable
: The authors declare that they have no competing interests.