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History
- Received: February 21, 2017
- Accepted: June 20, 2017
- Published online September 28, 2017.
Article Versions
- Previous version (September 12, 2017 - 11:13).
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Copyright & Usage
© Zong et al. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly cited. To view a copy of the license, visit http://creativecommons.org/licenses/by/4.0/. When linking to this article, please use the following permanent link: https://doi.org/10.9745/GHSP-D-17-00068
Author Information
- aInstitute of Public Administration, Hohai University, Nanjing, China.
- bSchool of Economics, Nanjing University of Posts and Telecommunications, Nanjing, China.
- cDepartment of Family and Community Medicine, University of California, San Francisco, CA, USA.
- Correspondence to Norman Hearst (norman.hearst{at}ucsf.edu).
