Funding for this research was provided by:
Zhejiang Civil Affairs Development Promotion Association
Zhejiang Provincial Medicine and Health Technology Projec (2019KY003)
Received: 17 April 2020
Accepted: 5 August 2020
First Online: 17 August 2020
Ethics approval and consent to participate
: This research project was reviewed and approved by the Medical Ethics Committee of Zhejiang Hospital. All participants provided written, informed consent.
: Not applicable.
: The authors declare that they have no competing interests.