Funding for this research was provided by:
Qatar National Research Fund (NPRP 5-618-5-087)
Received: 5 July 2017
Accepted: 3 May 2018
First Online: 24 May 2018
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of Weill Cornell Medicine-Qatar, the Qatar University Institutional Review Board, the American University of Beirut Institutional Review Board for Social and Behavioral Sciences and the University of Michigan Health Science and Behavioral Science Institutional Review Board. All participants indicated their informed online consent at the beginning of the survey.
: The authors declare that they have no competing interests.
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