Author contributions:
Mouhammad Kanj: Concept/design, Data analysis/interpretation, Drafting article, Critical revision of article, Data collection.
Mohammad Jomaa: Concept/design, Data analysis/interpretation.
Roula Moucadie: Concept/design, Data analysis/interpretation, Data collection.
Moussa Abi Ghanem: Data analysis/interpretation, Data collection.
Ziad Mansour: Concept/design, Data analysis/interpretation, Drafting article, Critical revision of article, Approval of article, Data collection.