Received: 27 February 2021
Accepted: 26 November 2021
First Online: 18 December 2021
: CLHLS was approved by the Biomedical Ethics Committee, Peking University (IRB00001052–13074). All participants or their legal representatives provided written, informed consent in every interview. This study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting guidelines. All methods in this study were performed in accordance with the relevant guidelines and regulations.
: All participants in the study consented to having pseudonymized personal data (age, gender, job title and years’ experience) published. Quotations from the interviews are not linked to a particular individual in order protect the participants’ anonymity.
: The authors declare that they have no competing interests.