Text and Data Mining valid from 2019-01-15
Received: 13 February 2018
Accepted: 4 January 2019
First Online: 15 January 2019
Ethics approval and consent to participate
: The study received ethical approval from Taipei Medical University. Written consent was obtained from all the participants in the study.
: Not applicable.
: The authors declare that they have no conflicts of interest pertaining to the work.
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