Funding for this research was provided by:
Qatar University Grant (QUUG-BRC-2017)
Text and Data Mining valid from 2018-07-28
Received: 9 April 2018
Accepted: 13 July 2018
First Online: 28 July 2018
Ethics approval and consent to participate
: Ethical approval for this study was obtained from the Medical Research Centre (MRC), Hamad Medical Corporation (HMC), Doha, Qatar, protocol no. 16434/16.
: The authors declare that they have no competing interests.
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