Gan, Ji https://orcid.org/0000-0001-6041-588X
Wang, Weiqiang
Article History
Received: 5 July 2017
Accepted: 14 October 2017
First Online: 3 November 2017
Compliance with ethical standards
:
: We declare that we have no financial and personal relationships with other people or organizations that can inappropriately influence our work; there is no professional or other personal interest of any nature or kind in any product, service and/or company that could be construed as influencing the position presented in, or the review of, the manuscript entitled.