Funding for this research was provided by:
Qatar Foundation (NPRP-EP X-014-4-001)
Text and Data Mining valid from 2019-06-17
Received: 10 September 2018
Accepted: 23 May 2019
First Online: 17 June 2019
Ethics approval and consent to participate
: Not applicable as human or animal subjects were not included.
: Not applicable.
: The authors declare that they have no competing interests.