Funding for this research was provided by:
Ministry of Health and Welfare (DOH100-TD-M-113-100007(1 of 2) and DOH101-TD-M-113-100007(2 of 2))
Received: 11 February 2019
Accepted: 13 May 2019
First Online: 22 May 2019
Ethics approval and consent to participate
: The Ethics Committee of Taipei Medical University approved the study protocol (approval number TMU201012008). Informed written and oral consent was obtained from all participants prior to participation in the study.
: Not applicable.
: The authors declare no potential competing interests with respect to the research, authorship, and/or publication of this article.
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