Zhai, Xiao-Dong
Wang, Chun-Xiu
Ma, Yong-Jie
Yu, Jia-Xing
Xiang, Si-Shi
Jiao, Han-Yi
Shao, Peng
Guan, Xin
Wang, Jun
Zhang, Hong-Qi
Article History
Received: 8 October 2019
Accepted: 28 February 2020
First Online: 20 March 2020
Ethics approval and consent to participate
: This study was a retrospective study. No ethics committee certification is required.
: Written informed consents were obtained from all patients or their legally authorized representatives, and privacy of patients was effectively protected.
: The authors declare that they have no competing interests.