Funding for this research was provided by:
Ministry of Education Key Laboratory of trauma treatment and nerve regeneration (BMU2019XY007-01)
Beijing Science and Technology Planning Project (D161100002816001)
Received: 29 July 2020
Accepted: 19 November 2020
First Online: 30 November 2020
Ethics approval and consent to participate
: The Ethics Review Committee of Peking University People’s Hospital approved this study, with an approval number of 2020PHB 180–01. For this type of study, consent is not required.
: Not applicable.
: Tianyu Zhang, Pei-xun Zhang, Feng Xu, Dianying Zhang, and Baoguo Jiang declare that they have no conflict of interest.