Dai, Xin-Ya
Zheng, Ying-Ying https://orcid.org/0000-0003-0003-4270
Tang, Jun-Nan
Yang, Xu-Ming
Guo, Qian-Qian
Zhang, Jian-Chao
Cheng, Meng-Die
Song, Feng-Hua
Liu, Zhi-Yu
Wang, Kai
Jiang, Li-Zhu
Fan, Lei
Yue, Xiao-Ting
Bai, Yan
Zhang, Zeng-Lei
Zheng, Ru-Jie
Zhang, Jin-Ying
Funding for this research was provided by:
National Natural Science Foundation of China (81870328, 81760043, 81800267)
Article History
Received: 18 August 2019
Accepted: 14 November 2019
First Online: 4 December 2019
Ethics approval and consent to participate
: This study protocol was approved by the ethics committee of the First Affiliated Hospital of Zhengzhou University, and was in line with the Declaration of Helsinki. Due to the retrospective design of the study, the need to obtain informed consent from eligible patients was waived by the ethics committee.
: Written informed consent for publication was obtained from each author, and there are no other persons who satisfy the criteria for authorship but are not listed.
: The authors declare that they have no competing interests.