Received: 22 October 2021
Accepted: 21 June 2022
First Online: 12 October 2022
: None declared. All authors have completed the ICMJE uniform disclosure form at http://www.icmje.org/coi_disclosure.pdf and declare: no support from any organization for the submitted work; no financial relationships with any organizations that might have an interest in the submitted work in the previous three years, no other relationships or activities that could appear to have influenced the submitted work.
: The ethics committees and institutional review boards of the National Science Council (Academia Sinica) of Taiwan approved this study and the consent procedure. All respondents provided oral informed consent to participate before interviews were started. The study was performed in accordance with the Declaration of Helsinki and data policy of the National Science Council.
: All authors read and approved the final manuscript to be published.