Yin, Lishi
Fan, Ling
Tan, Renfu
Yang, Guangjing
Jiang, Fenglin
Zhang, Chao
Ma, Jun
Yan, Yang
Zou, Yanhong
Zhang, Yaowen
Wang, Yamei
Zhang, Guifang https://orcid.org/0000-0002-8203-1884
Article History
Received: 27 March 2018
Accepted: 24 May 2018
First Online: 4 June 2018
Ethics approval and consent to participate
: The study was approved by the ethic committee. Informed consent was obtained in a written form.
: The authors declare that they have no competing interests.
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