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Reasons for encounter and health problems managed by general practitioners in the rural areas of Beijing, China: A cross-sectional study
- Yanli Liu,
- Chao Chen,
- Guanghui Jin,
- Yali Zhao,
- Lifen Chen,
- Juan Du,
- Xiaoqin Lu
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- Published: December 21, 2017
- https://doi.org/10.1371/journal.pone.0190036