Received: 28 May 2019
Accepted: 11 November 2019
First Online: 2 December 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board, Research and Ethical Committee of College of Medicine & Health Sciences, Sultan Qaboos University - SQU (EC 55/14/MREC #907). Participants were requested to provide written informed consent and the study was carried out in accordance with the Code of Ethics of the World Medical Association (Declaration of Helsinki) for human experiments.
: Not applicable. However, consent for publication was obtained through ethics approval and consent to participate.
: The authors declare that they have no competing interests.