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Authors
Zhang, Jia-Yi
Liao, Yu-Huang
Lin, Ying
Liu, Qiang
Xie, Xiao-Ming
Tang, Lu-Ying
Ren, Ze-Fang https://orcid.org/0000-0002-7785-4704
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Funding
Funding for this research was provided by:
National Natural Science Foundation of China (81773515, 81273147)
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Article History
Received: 21 October 2018
Accepted: 23 April 2019
First Online: 16 May 2019
Compliance with ethical standards
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: All the authors declared that they have no conflict of interest.
: This study was approved by the Ethics Committee of the School of Public Health at Sun Yat-sen University. All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
