Xu, Jianbiao
Zhang, Leiming
Bu, Rongqiang
Liu, Yankang
Lewandrowski, Kai-Uwe
Zhang, Xifeng
Article History
Received: 11 September 2020
Accepted: 19 January 2021
First Online: 29 January 2021
Ethics approval and consent to participate
: Informed consent was obtained in writing from all the individual participants included in the study. This study was approved by the Medical Ethics Committee of The Medical Center of PLA Hospital, Beijing, China.
: Informed consent was obtained in writing from all the individual participants included in the study.
: The authors have no direct (employment, stock ownership, grants, patents), or indirect conflicts of interest (honoraria, consultancies to sponsoring organizations, mutual fund ownership, paid expert testimony). This manuscript is not meant for or intended to push any other agenda other than reporting the research data. This paper has not been published elsewhere in whole, or in part.