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Prevalence and influence factors of self-medication in Chinese middle-aged and elderly people: evidence from 2011, 2013 and 2015 CHARLS panel data
Zhuangfei Wang, Xiaodong Guan, Yue Zhou, Sheng Han, Peng Yao, Luwen Shi
Journal of Chinese Pharmaceutical Sciences . 2019, (6): 430 -438 .  DOI: 10.5246/jcps.2019.06.042