Li, Lan
Zhong, Hua
Li, Jun
Li, Cai-Rui
Pan, Chen-Wei
Funding for this research was provided by:
National Natural Science Foundation of China (81773449, 81560169)
Article History
Received: 31 January 2018
Accepted: 25 June 2018
First Online: 20 July 2018
Ethics approval and consent to participate
: Ethics committee approval was obtained from the Institutional Review Board of Kunming Medical University. We carried out the study according to the tenets of the Declaration of Helsinki involving human participants and the approved guidelines. Additionally, we obtained written informed consents from at least one parent or legal guardian of each participant.
: Not applicable.
: The authors declare that they have no competing interests.
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