Funding for this research was provided by:
King Abdulaziz Medical City (36/84)
Received: 27 May 2019
Accepted: 11 September 2019
First Online: 22 October 2019
Ethics approval and consent to participate
: This research is approved by the IRB committee of King Abdullah International Medical Recearch Center, Saudi Arabia.All participants signed consent to use their data.
: Not Applicable
: The corresponding author (MM) is the member of the Editorial Board of BMC medical education (Associate editors. Other authors no competing interest.