Funding for this research was provided by:
Buddhist Tzu Chi Medical Foundation (TCMF-P 108-04)
Received: 13 September 2020
Accepted: 3 March 2021
First Online: 16 March 2021
: The study is approved by the Research Ethics Committee of the Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation (Identification number: IRB107–209-B). Consent to participate is not applicable and is approved by the ethics committee.
: Not applicable.
: The authors declare that they have no competing interests.