Text and Data Mining valid from 2018-04-16
Received: 5 June 2017
Accepted: 9 April 2018
First Online: 16 April 2018
Ethics approval and consent to participate
: The study was reviewed and approved by the Lebanese University Institutional Review Board.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.