Zhang, Ye
Zhang, Jun
Ren, Rong
Tang, Xiangdong
Funding for this research was provided by:
the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA23090502)
National Natural Science Foundation of China (81530002, 81629002, 81800093)
National Basic Research Program of China (2015CB856406)
Article History
Received: 21 May 2019
Revised: 18 September 2019
Accepted: 29 September 2019
First Online: 8 November 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: All authors including Dr. Ye Zhang, Dr. Jun Zhang, Dr. Rong Ren, and Professor Xiangdong Tang declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of Monash Health, the National Health and Medical Research Council (NHMRC), and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. This study was approved by the Ethics Committee of the West China Hospital of Sichuan University, the Education Bureau of the Baoxing County, and the Department of Health of Sichuan Province, China.
: Informed consent was obtained from all individual participants included in the study. Written informed consent was also obtained from the principals and teachers in schools. In China, research projects do not need parental consent if local education authorities, such as the county Bureau of Education and school administrators, approve it as a service to the students [CitationRef removed]. The present study belonged to that category; thus, written informed consent from parents was not required [CitationRef removed].