Funding for this research was provided by:
the Health research project of Wuxi Health and Family Planning Commission (Q201766)
the Maternal and child health research project of Wuxi Health and Family Planning Commission (FYKY201703)
Received: 6 July 2020
Accepted: 20 August 2020
First Online: 31 August 2020
Ethics approval and consent to participate
: The study design strictly adhered to the Helsinki Declaration. Informed consent was obtained from each patient before surgery for use of tissue/tumor samples, and approval was obtained from the Ethics Committee of the Affiliated Hospital of Jiangnan University (no. LS2019028).
: Not applicable.
: The authors declare that they have no competing interests.