Received: 2 September 2020
Accepted: 14 January 2021
First Online: 8 February 2021
: This study was given an exemption by the Ethics Review Committee, the Aga Khan University Hospital, Karachi. For this type of study, formal consent is not required.
: For this type of study, formal consent is not required.
: Author SN has received research grants from the WHO and speaker honorarium from Abbott and Lilly. No other author has any conflict of interest.