Li, Chenxia
Liu, Haitian
Li, Xiang
Zhou, Li
Wang, Rong
Zhang, Yuelang
Article History
First Online: 27 August 2018
Compliance with ethical standards
:
: The study was funded by No. XJTU1AHCR2014-037.
: All the authors declare no conflicts of interest.
: All procedures performed in this study were in according with the ethical standards of the institutional and/or 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.