Zhong, Yaqin
Wang, Jian
Nicholas, Stephen
Funding for this research was provided by:
National Natural Science Foundation of China (71603136)
Nantong University (03080878)
Article History
Received: 26 March 2017
Accepted: 24 August 2017
First Online: 2 September 2017
Ethics approval and consent to participate
: This study used secondary data from CHARLS. The agency responsible for the survey is Peking University.
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