Received: 24 August 2019
Accepted: 19 April 2021
First Online: 22 May 2021
: Written informed consent was obtained from all participants before data collection. The study and the details of the consent were approved by both the 'Ethical Committee for Human and Clinical Research' and the 'Medical Research Committee' (MREC# 728) of the College of Medicine, Sultan Qaboos University. This study adhered to the World Medical Association’s Declaration of Helsinki (1964–2008) for Ethical Human Research including confidentiality, privacy and data management.
: Not applicable.
: The authors declare that they have no competing interests.