Published on in Vol 6, No 4 (2020): Oct-Dec
Preprints (earlier versions) of this paper are
available at
https://www.medrxiv.org/content/10.1101/2020.07.27.20163287v1, first published
.
1 Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
*all authors contributed equally