Funding for this research was provided by:
Faculty of Medicine, Prince of Songkla University (61-199-11-1)
Text and Data Mining valid from 2019-04-08
Received: 17 January 2019
Accepted: 28 March 2019
First Online: 8 April 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee and Institutional Review Board of the Faculty of Medicine, Prince of Songkla University.
: Not applicable.
: The authors declare that they have no competing interests.
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