Zhang, Xueling
Bai, Liangcai
Wang, Dan
Huang, Xiaoyu
Wei, Jinyan
Zhang, Wenjuan
Zhang, Zhuoli
Zhou, Junlin
Article History
First Online: 12 April 2019
Compliance with ethical standards
:
: The authors declare no potential conflicts of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional 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.