Lv, Guang-chao
Li, Zhi-hong
Duan, Zong-sheng
Niu, Chun-bo
Li, Ming-he
Wang, Kai-zhong
Jiang, Jin-dong
Article History
Received: 13 November 2019
Accepted: 4 May 2020
First Online: 13 May 2020
Ethics approval and consent to participate
: This study was approved by the ethics committee of First Hospital of Jilin University. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Written informed consent was obtained from individual participants.
: All data published here are under the consent for publication. Written informed consent was obtained from all individual participants included in the study.
: All authors declare that they have no conflicts of interest.