Zhao, Lijuan
Lou, Hongxiang
Peng, Ying
Chen, Shihong
Zhang, Yulong
Li, Xiaobo http://orcid.org/0000-0002-7500-9275
Funding for this research was provided by:
National Natural Science Foundation of China (81673588)
Article History
Received: 22 June 2019
Accepted: 26 September 2019
First Online: 7 October 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All procedures performed in the study involving human participants were in accordance with the ethical standards of the Committee on the Ethics of the Second Hospital of Shandong University (reference number: KYLL-2015(KJ)P-0103) and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants or their legal guardians included in the study.