Funding for this research was provided by:
Shanghai Sailing Program (20YF1424800)
Received: 10 June 2021
Accepted: 14 September 2021
First Online: 2 October 2021
Change Date: 18 March 2022
Change Type: Correction
Change Details: A Correction to this paper has been published:
Change Details: https://doi.org/10.1186/s12877-021-02562-7
: The study was approved by the Institutional Review Board, Duke University (Pro00062871), and the Biomedical Ethics Committee, Peking University (IRB00001052–13074) in accordance with the principles of the Declaration of Helsinki. Written informed consents were obtained from the participants during the face-to-face interview.
: Not applicable.
: The authors declare that they have no competing interests.