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Paper published by Mr Yangang Ren:
Original Research
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Prevalence and risk factors for COPD in greenhouse farmers: a large, cross-sectional survey of 5,880 farmers from northeast China
Liu S, Ren YG, Wen DL, Chen Y, Chen DH, Li LY, Zhang XH, Zhang YB, Fu S, Li ZH, Xia SY, Wang DL, Chen H, Zhao J, Wang XG
International Journal of Chronic Obstructive Pulmonary Disease 2015, 10:2097-2108
Published Date: 1 October 2015