Wan, Li
Zhang, Dongliang http://orcid.org/0000-0002-6303-7404
Article History
Received: 24 December 2017
Accepted: 20 June 2018
First Online: 26 June 2018
Compliance with ethical standards
:
: Author Li Wan declares that she has no conflict of interest. Author Dongliang Zhang declares that he has no conflict of interest either.
: All procedures performed in the present study involving human participants were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Informed consent was obtained from all individual participants included in the study.