Zhao, Huiying
Wang, Guangjie
Lyu, Jie
Zhang, Xiaohong
An, Youzhong
Funding for this research was provided by:
Peking University People’s Hospital Research and Development Funds (RDY2019-43)
Article History
Received: 3 June 2020
Accepted: 22 December 2020
First Online: 9 January 2021
Ethics approval and consent to participate
: The study was approved by Ethics Committee of Peking University People’s Hospital. This study was in accordance with the ethical standards of the institutional research committee, the 1964 Helsinki declaration, and its later amendments. For this type of study formal consent is not required.
: Not applicable.
: The authors declare that they have no competing interests.