Yan, Jingrui
Liu, Yulan
Liu, Tong
Zhu, Qiang
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2020QH033)
Article History
Received: 2 August 2024
Accepted: 3 November 2024
First Online: 14 November 2024
Declarations
:
: Since the SEER database is publicly accessible and all records are de-identified, no further ethical approval or informed consent was necessary once the SEER Research Data Agreement was executed to access the data. The study was conducted in compliance with the principles of the Helsinki Declaration.
: Not applicable.
: The authors declare no competing interests.