Xia, Weiwei
Fu, Han
Zhu, Zhenqi
Liu, Chenjun
Wang, Kaifeng
Xu, Shuai
Liu, Haiying
Article History
Received: 24 October 2018
Accepted: 20 September 2019
First Online: 20 October 2019
Ethics approval and consent to participate
: The study was approved by the Medical Ethics Committee of Peking University People’s Hospital and all patients gave written informed consent for their information to be stored in the hospital database and used for research.
: Not Applicable.
: The authors declare no conflict of interests.