Funding for this research was provided by:
This study was funded by the University Diabetes Center at King Saud University, Ministry of Health and the Tawuniya Company for health insurance.
Received: 25 April 2017
Accepted: 27 February 2018
First Online: 5 March 2018
Ethics approval and consent to participate
: The study protocol was submitted to, and approved by the Institutional Review Board, at the College of Medicine, King Saud University. This research was conducted in accordance with the Declaration of Helsinki and a written consent form was obtained from each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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