Yuan, Zhen-Guo
Wang, Zong-Ying
Xia, Meng-Ying
Li, Feng-Zhi
Li, Yao
Shen, Zhen
Wang, Xi-Zhen http://orcid.org/0000-0003-0993-1170
Funding for this research was provided by:
National Natural Science Foundation of China (81641074,81171303,30470518,8177182)
Natural Science Foundation of Shandong Province (ZR2009CL046,ZR2010HQ029,ZR2016HL40,ZR2017MH037)
Scientific research award fund for outstanding young and middle-aged scientists in shandong province (BS2012YY038)
Scientific research program of colleges and universities in shandong province (J18KA288)
Shandong province medical and health science and technology development plan (2011WSB29009,2011HW067,2017WS408,2017WS579)
Weifang science and technology development project (2017YX054)
Shandong province science and technology development projection (2012 YD18064)
Project of Medicine and Health Development Plan of Shandong Province (2011HW067)
Shandong Provincial Natural Science Foundation of China (ZR2013HM071)
Key research and development program of shandong province (GG201710080117)
Article History
Received: 1 February 2019
Accepted: 13 May 2019
First Online: 29 May 2019
Ethics approval and consent to participate
: The study was approved by the Institutional Review Board of the Affiliated Hospital of Weifang Medical University and all participants gave witnessed informed consent.
: The informed consent provisions and protocols were reviewed and approved by the Institutional Review Board of the Affiliated Hospital of Weifang Medical University.
: The authors declare that there are no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.