Funding for this research was provided by:
Department of Health, Taipei City Government (10501-62-068)
Received: 17 December 2019
Accepted: 6 July 2020
First Online: 14 July 2020
Ethics approval and consent to participate
: This study was reviewed and approved by the Institutional Review Board of the abovementioned Taipei City Hospital (TCHIRB-10412112). All participants in this study have signed their informed consent before participating in this study.
: Not applicable.
: The authors declare that they have no competing interests.