Funding for this research was provided by:
Peking University Cancer Hospital's Science Foundation (2021-19)
Article History
Received: 20 February 2022
Accepted: 23 June 2022
First Online: 2 July 2022
Declarations
:
: This study was approved by the Ethics Committee of Peking University Cancer Hospital.
: Research assistants explained the study purpose, procedures, and participants’ role in the study to all prospective participants before they started. Patients and family caregivers were informed that the autonomy to participate or withdraw in this study at any time was respected. The written informed consent was obtained.
: N/A
: The authors declare no competing interests.