He, Gui-Nv
Guo, Hao-Zhan
Han, Xiong
Wang, En-Feng
Zhang, Yan-Qiu
Article History
Received: 14 March 2018
Revised: 6 June 2018
Accepted: 7 June 2018
First Online: 15 June 2018
Compliance with ethical standards
:
: Ethical standard all procedures performed in studies involving human participants were in accordance with the ethical standards of the institution or practice at which the studies were conducted.
: The authors declare that they have no conflict of interest.