Article History
Received: 3 December 2017
Accepted: 21 June 2018
First Online: 4 July 2018
Ethics approval and consent to participate
: An exemption for the use of this de-identified dataset was obtained from the institutional review board (IRB) office at the American University of Beirut. This database is defined as limited data set under the HIPAA Privacy Rule and as such is de-identified prior to use and is waived from consent.
: Not applicable.
: The authors declare that they have no competing interests.
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