Received: 6 June 2020
Accepted: 16 July 2020
First Online: 31 July 2020
Ethics approval and consent to participate
: This study was approved by the University of Malaya Medical Centre’s Institutional Review Board (201755–5215) according to the Declaration of Helsinki. Written informed consent was signed by all patients.
: Not applicable. This study did not contain any individual person’s data in any form (including any individual details, images or videos).
: The authors declare that they have no competing interests.