Zhu, Jing-li
Wang, Xue-ting
Gong, Jing
Sun, Hai-bin
Zhao, Xiao-qing
Gao, Wei
Article History
Received: 19 August 2019
Accepted: 15 January 2020
First Online: 23 January 2020
Ethics approval and consent to participate
: The study was approved by the institutional review board (Harbin Medical University Institutional Research Board: KY2018–003). The study design, the anonymous data acquisition, and the publication of the data were in accordance with the Declaration of Helsinki. Informed written consent was obtained from all patients.
: Not applicable.
: The authors declare that they have no competing interests.