Fang, Fang
Zhang, Qing-Ying
Zhang, Jun
Lei, Xiao-Ping
Luo, Zhong-Cheng
Cheng, Hai-Dong
Article History
Received: 19 October 2018
Accepted: 20 March 2019
First Online: 16 April 2019
Compliance with ethical standards
:
: Anonymized data were used for this study, rendering an ethical approval unnecessary by the Institutional Review Board of Xinhua Hospital.
: All authors declare that they have no conflict of interest.