Received: 9 October 2018
Accepted: 5 July 2020
First Online: 23 July 2020
Ethics approval and consent to participate
: The study was performed following approval from the department of Internal Medicine dissertation committee and thereafter from the Research Ethics Committee at the Aga Khan University. Psychological risks were not identified in this study. A written consent was signed by each participant, a method approved by the University research ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.