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Authors
Wang, Zengwen
Chen, Yucheng https://orcid.org/0000-0002-3596-8666
Pan, Tianyi
Liu, Xiaodi
Hu, Hongwei
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Funding
Funding for this research was provided by:
The Ministry of Education in China (16JJD840008)
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Article History
Received: 20 November 2018
Accepted: 21 May 2019
First Online: 14 June 2019
Ethics approval and consent to participate
: All procedures in this study were in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards.
: Author gives full consent for publication of this paper in International Journal for Equity in Health.
: The authors declare that they have no competing interests.
