Acknowledgement: this study has been partially supported financially by Dr Hamza Alkholi Chair for Developing Medical Education in KSA. abdulaziz alkaabba, a. College of Medicine Al-Imam Muhammad Ibn Saud Islamic University 8 May 2014 Acknowledgement: this study has been partially supported financially by Dr Hamza Alkholi Chair for Developing Medical Education in KSA. Competing interests None declared
Acknowledgement: this study has been partially supported financially by Dr Hamza Alkholi Chair for Developing Medical Education in KSA.
8 May 2014
Acknowledgement: this study has been partially supported financially by Dr Hamza Alkholi Chair for Developing Medical Education in KSA.
Competing interests
None declared