Fei, Yuan http://orcid.org/0000-0002-1667-4099
Qiu, Yuxuan
Xing, Zhichao
Zhao, Wanjun
Su, Anping
Zhu, Jingqiang
Article History
Received: 11 April 2020
Accepted: 18 July 2020
First Online: 28 July 2020
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical approval was waived by the local Ethics Committee of Sichuan University in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
: We obtained consent from participants to participate in the study and to publish their data. All authors have read and approved the manuscript.