Funding for this research was provided by:
National Natural Science Foundation of China (81971756)
National Key Research and Development Program of China (2020YFA0113003)
Received: 18 September 2020
Accepted: 5 March 2021
First Online: 22 March 2021
: All animal experimental procedures were conducted according to a protocol approved by the Ethics Committee of the First Affiliated Hospital of Zhejiang University.Human placenta tissues were obtained written informed consent from all donors. All protocols for human tissue and cell handling were approved by the Research Ethics Committee of the hospital (reference No. 2013-272).
: Not applicable.
: The authors declare no competing interests.