Cui, Yiliang
Hua, Xingyi
Schmidutz, Florian
Zhou, Jian
Yin, Zongsheng
Yan, Shuang G.
Article History
Received: 22 September 2019
Accepted: 20 November 2019
First Online: 28 November 2019
Ethics approval and consent to participate
: This retrospective study was approved by the Ethics Committee of the First Affiliated Hospital of Anhui Medical University. Written informed consent was obtained by all participants.
: Not applicable.
: The authors declare that they have no competing interests.