Received: 18 March 2020
Accepted: 14 May 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: The ethical committee clearance was obtained in the month of December 2018 from The Institutional Human Ethics Committee (DCGI Reg. no. ECR/668/INST/TN/2014) with reference no. IHEC/136/ENT/1416. A consent for willingness to participate in the study was obtained from the patients before the start of the study.
: Not applicable
: There were no competing interests in the study design.