Wang, Yan
Sun, Chuanyu
Cui, Xinhua
Guo, Ying
Wang, Qirong
Liang, Hui http://orcid.org/0000-0001-6937-8210
Funding for this research was provided by:
Jinan Science and Technology Bureau (201503020)
Article History
Received: 7 July 2018
Revised: 18 September 2018
Accepted: 24 September 2018
First Online: 1 October 2018
Compliance with ethical standards
:
: All studies have been performed in accordance with and approved by the Shandong Provincial QianFoShan Hospital human ethics committee and have, therefore, been performed in accordance with the Declaration of Helsinki and its amendments. For this type of study, formal consent is not required.
: The authors declare that they have no conflicts of interest.