Received: 5 April 2022
Accepted: 12 August 2022
First Online: 3 September 2022
: This is a prospective, cross sectional and observational study. The study was approved by the Medical Ethics Committee University Malaya Medical Center (date of approval: November 29, 2017, reference number: 2017103–5619). The study was conducted in accordance with the Declaration of Helsinki in University Malaya Medical Center, a modern full-fledged tertiary referral hospital with the first participant recruited on December 18, 2017 and the last participant on August 15, 2018.Written informed consent to participate in the study was obtained from all participants.
: Not applicable.
: I declare that the authors have no competing interests as defined by BMC, or other interests that might be perceived to influence the results and/or discussion reported in this paper.