Xu, Peng-cheng
Chen, Tong
Wu, Si-jing
Yang, Xia
Gao, Shan
Hu, Shui-yi
Wei, Li
Yan, Tie-kun
Funding for this research was provided by:
grants of National Natural Science Fund (81200534)
National Natural Science Foundation of China (81570630)
National Natural Science Foundation of China (81600554)
Tianjin Research Program of Application Foundation and Advanced Technology (15JCQNJC10700, 17JCQNJC10200)
China Postdoctoral Science Foundation funded project (2014M560191)
Article History
Received: 17 September 2018
Accepted: 24 July 2019
First Online: 30 July 2019
Ethics approval and consent to participate
: The research was in compliance of the declaration of Helsinki and the protocol was approved by the institutional review board of Tianjin Medical University General Hospital [ZYY-IRB-SOP-016(F)-002–03]. Informed consent from each patient to participate in this study was not required by the Institutional Review Board, because the study was a retrospective review of clinical records only.
: Not applicable because this report does not contain data for individual patients.
: The authors declare that they have no competing interests.