Zhou, Yanqing
Zhu, Yanbin
Zhang, Xiong
Tian, Dehu
Zhang, Bing
Article History
Received: 4 September 2019
Accepted: 31 October 2019
First Online: 18 November 2019
Ethics approval and consent to participate
: Permission was obtained from the Institutional Review Board of the 3rd Hospital of Hebei Medical University.
: Written informed consent was obtained from each patient to authorize the publication of their data.
: The authors declare that they have no competing interests.