Funding for this research was provided by:
Health Promotion Administration, Ministry of Health and Welfare (MOHW105-HPA- M-114- 124706)
Received: 30 July 2019
Accepted: 6 February 2020
First Online: 11 February 2020
Ethics approval and consent to participate
: The current study was approved by the Institutional Review Board of National Chung Kung University Hospital (IRB No. A-ER-104-071).
: Not applicable.
: The authors declare that they have no competing interests.