Received: 2 April 2020
Accepted: 26 July 2020
First Online: 10 August 2020
Ethics approval and consent to participate
: Clearance for the samples used in this study has been obtained from the Bangalore Ethics Committee, Bangalore, India, constituted as per ICH-GCP, Schedule Y and ICMR guidelines, and registered with DGCI, India, with the registration number ECR/87/Indt/KA/2013 issued under rule 122DD of the Drugs & Cosmetics Rules 1945 (India), and in accordance with the Declaration of Helsinki. The requirement for informed patient consent was waived as per local guidelines (section 5.7, ICMR Ethical Guidelines, 2017) for retrospective, non-interventional anonymized studies using biological samples/data.
: Not applicable.
: The authors declare that they have no financial or non-financial competing interests.