Wang, Wenhui
Zou, Lijuan
Wang, Tiejun
Liu, Zi
He, Jianli
Sun, Xiaoge
Zhong, Wei
Zhao, Fengju
Li, Xiaomei
Li, Sha
Zhu, Hong
Ma, Zhanshu
Sun, Shuai
Jin, Meng
Zhang, Fuquan
Hou, Xiaorong
Wei, Lichun
Hu, Ke
Article History
Received: 4 March 2021
Accepted: 14 June 2021
First Online: 4 July 2021
Declarations
:
: The study was approved by Institutional Review Board of Peking Union Medical College Hospital (N0. S-K139) at Oct. 24, 2016. We confirm that the Institutional Review Board of Peking Union Medical College Hospital waived the need for obtaining the informed consent given the retrospective nature of the study. We confirm that all methods were performed in accordance with the relevant guidelines and regulations.
: Not applicable.
: None.