Funding for this research was provided by:
King Faisal Specialist Hospital and Research Centre (2161235)
Article History
Received: 13 March 2018
Accepted: 9 January 2019
First Online: 18 January 2019
Ethics approval and consent to participate
: The study was conducted according to the ethical guidelines of the Declaration of Helsinki and was approved by the KFSH&RC Research Ethics Committee (RAC 2161235). All participants provided a written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
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