Liu, Hou-Li
Li, Tian-Tian
Yu, Ai-Qun
Li, Jingmin
Li, Xiaoyan
Li, Lianqin http://orcid.org/0000-0002-0571-7559
Kaifu, Tomonori
Funding for this research was provided by:
the Key Research and Development Program of Shandong Province (2018GSF118190)
Article History
Received: 9 December 2018
Accepted: 7 March 2019
First Online: 14 March 2019
Ethics approval and consent to participate
: This study was approved by the Ethics Committee of Binzhou Medical University. The reference number is 2017–037 and the date of approval is 2017-9-26. Informed consent was obtained from all individual participants included in the study.
: Not applicable.
: The authors declare that they have no competing interests.
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