Tian, Yuan
Yuan, Ying
Lu, Hang
Xu, Liang
Yang, Wei Xian
Mu, Chao Wei
Liu, Hai Bo
Chen, Jue
Dou, Ke Fei
Tang, Yi Da
Yuan, Jin Qing
Wu, Yong Jian
Yan, Hong Bing
Xu, Bo
Qiao, Shu Bin
Yang, Yue Jin
Gao, Run Lin
Qiu, Hong http://orcid.org/0000-0002-6347-0937
Article History
Received: 9 February 2018
Accepted: 7 April 2018
First Online: 13 April 2018
Compliance with ethical standards
:
: The authors declare that they have no conflicts of interest.
: All procedures performed in studies involving human participants were in accordance 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. For this type of study formal consent is not required.