Zheng, Jia-Hua
Zhang, Jing-Kun
Kong, De-Sheng
Song, Yan-Biao
Zhao, Shuang-Dan
Qi, Wen-Bo
Li, Ya-Nan
Zhang, Ming-le
Huang, Xiang-Hua
Article History
Received: 26 October 2019
Revised: 29 May 2020
Accepted: 1 July 2020
First Online: 13 July 2020
Ethics approval and consent to participate
: This study was approved by the Research and Ethical Committee of the Second Hospital of Hebei Medical University, China, basing on the 1964 Helsinki Declaration and its later amendments.
: Not applicable.
: The authors declare that they have no competing interests.