Liang, Zumu
Mou, Qingjie
Pan, Zhiwei
Zhang, Qiang
Gao, Guojun
Cao, Yingying
Gao, Zhiqin
Pan, Zhifang
Feng, Weiguo http://orcid.org/0000-0003-1366-9208
Funding for this research was provided by:
Natural Science Foundation of Shandong Province (ZR2014CL034, ZR2018MC015)
Medical and Health Development Plan of Shandong Province (2017WS058)
Research and Development Plan of University in Shandong Province (J18KA120)
Article History
Received: 27 March 2019
Accepted: 7 May 2019
First Online: 14 May 2019
Compliance with ethical standards
:
: The authors declare that they have no financial or competing interests.
: This study was approved by the Research Ethics Committee of Weifang Medical University (Weifang, China). The procedures performed in present study 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.
: Informed consent was obtained from all individual participants included in the study.