Received: 19 August 2018
Accepted: 4 June 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: The study was ethically approved by the Institutional Review Board (IRB) of Al Imam Mohammad Bin Saud Islamic University, Riyadh, Saudi Arabia [Number. 0014/12/016/31]. All the participants provided their verbal consent before participating in the study and the ethics committee agreed with this method of collecting consent form participants because it was easier to explain to participants about the idea of research and it is faster because we were dealing with physicians.
: Not applicable.
: The authors declare that they have no competing interests.