Funding for this research was provided by:
National Institute for Social Care and Health Research
Government of Saudi Arabia
Text and Data Mining valid from 2018-10-30
Received: 9 March 2018
Accepted: 19 October 2018
First Online: 30 October 2018
Ethics approval and consent to participate
: The study was approved by King’s College London Research Ethics Committee (LRS- 15/16–2656). All study participants gave written consent to participate in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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