Funding for this research was provided by:
National Natural Science Foundation of China (81972371)
Suzhou Municipal Science and Technology Bureau (SYSD2020076)
Received: 25 December 2020
Accepted: 24 March 2021
First Online: 29 May 2021
: 40 BLCA spacemen were collected from Shanghai First People’s Hospital, with patients’ informed consent and the approval of the Medical Ethics Committee of Shanghai First People’s Hospital (approval number: 2020KY143).
: The authors declare that there are no conflicting interests.