Received: 9 July 2019
Accepted: 15 November 2019
First Online: 29 January 2020
Ethics approval and consent to participate
: The approval of the study protocol was obtained from the Internal Human Ethics Sub-Committee of the Central University of Tamil Nadu, Thiruvarur, India, vide the reference no CUTN/IHESC/2019-001 dated: 07/02/2019. After getting permission from the college administration, the objectives and proceeding of the study were explained to the study participants and assured that the information collected will be kept confidential. The participants who gave written consent were only given pre-tested self-administered anonymous questionnaire.
: Written informed consents from study participants were obtained for publication.
: The authors declare that they have no competing interests