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Chronic Diseases Knowledge and Related Factors among the Elderly in Jinan, China
- Yapei Song,
- Wei Ma,
- Xiangren Yi,
- Shumei Wang,
- Xiaojie Sun,
- Jiming Tian,
- Shukang Wang,
- Chunmei Zheng,
- Bingyin Zhang,
- Zhijian Xu
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- Published: June 24, 2013
- https://doi.org/10.1371/journal.pone.0068599