Cheng, Jian
Zhu, Rui
Xu, Zhiwei
Wu, Jinju
Wang, Xu
Li, Kesheng
Wen, Liying
Yang, Huihui
Su, Hong
Funding for this research was provided by:
Anhui Natural Science Fund (1408085MH159)
Article History
Received: 10 February 2014
Revised: 24 June 2015
Accepted: 12 October 2015
First Online: 23 October 2015
Compliance with ethical standards
: Ethical approval was obtained from the Ethics Committee of Anhui Medical University prior to the data collection.
: The authors declare that they have no competing interests.