Text and Data Mining valid from 2019-05-13
Received: 8 February 2019
Accepted: 12 April 2019
First Online: 13 May 2019
Ethics approval and consent to participate
: The study protocol was approved by the Institutional Review Board of the American University of Beirut (ID#: OTO.RH.01).
: Not applicable.
: The authors declare that they have no competing interests.
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