Gao, Wenlong
Li, Guirong
Liu, Xiaoning
Yan, Hong
Funding for this research was provided by:
National Natural Science Foundation of China (CN) (81230061)
Humanities and Social Sciences Foundation of the Ministry of Education of China (15XJC910001)
Ministry of Education of the People's Republic of China (CN) (lzujbky-2016-025)
Article History
Received: 28 September 2015
Accepted: 11 June 2018
First Online: 11 July 2018
Ethics approval and consent to participate
: We obtained the written informed consent forms from all the caretakers on the behalf of the children participants involved in the study after informing them about the process, purpose and confidentiality of the research. The study was reviewed and approved by the Ethics Committee of Medicine College of Xi’an Jiaotong University.
: Not Applicable.
: The authors declare that they have no competing interests.
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