Received: 2 August 2021
Accepted: 23 December 2021
First Online: 4 January 2022
: This study was approved by the Ethics Committee of Fujian Medical University Cancer Hospital, Fuzhou, China.The study protocol was designed in accordance with the guidelines outlined in the Declaration of Helsinki. All information was retrospectively extracted in the context of compliance with the relevant regulations and protection of patients’ privacy. This study was approved by the Ethical Review Committee of Fujian Cancer Hospital (No. SQ2019–031-01). All the participants signed an informed consent form.
: Not applicable.
: The authors declare that they have no competing interests.