Hong, Sen
Yan, Zhenkun
Wang, Helei
Ding, Lei
Song, Yumei
Bi, Miaomiao
Article History
Received: 23 July 2019
Accepted: 16 October 2019
First Online: 23 November 2019
Compliance with ethical standards
:
: We declare that we have no conflict of interest in the current study.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of The First Hospital of Jilin University (No. FHJU20120603) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.