Song, Xue
Xie, Yangyang
Lou, Yafang
Article History
Received: 5 April 2023
Accepted: 7 July 2023
First Online: 14 July 2023
Declarations
:
: We certified that all methods were carried out in line with the Helsinki Declaration. Because the patient data obtained from the SEER database is publicly accessible, no ethical approval was required. The Hangzhou TCM Hospital’s Ethics Committee evaluated and authorized the experiment involving human subjects. The ethics committee waived informed consent for this retrospective investigation.
: Not applicable.
: The authors declare no competing interests.