Yang, HuaGuang
Wang, Na
Luo, XiaoGuang
Lv, Hong
Liu, Hu
Fan, GuoGuang
Article History
First Online: 23 April 2019
Compliance with ethical standards
:
: None.
: All procedures used to evaluate human participants were performed in accord with institutional and/or national research committee ethical standards and with the 1964 Helsinki declaration (including later amendments) or comparable ethical standards.
: Each subject granted informed consent for study participation.