Guo, Ming-Bo
Wang, De-Chun http://orcid.org/0000-0003-0731-4531
Liu, Hai-Fei
Chen, Long-Wei
Wei, Jian-Wei
Lin, Yong
Xue, Hui
Funding for this research was provided by:
National Natural Science Foundation of China (21472104, 81401828)
Qingdao Outstanding Health Professional Development Fund
Article History
Received: 25 October 2017
Revised: 19 May 2018
Accepted: 25 June 2018
First Online: 14 July 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.