东北某部驻地空气可入肺颗粒浓度与营区呼吸道疾病就诊病例的相关性研究
동북모부주지공기가입폐과립농도여영구호흡도질병취진병례적상관성연구
A case-crossover study on fine particulate air pollution and the number of force patients for the respiratory diseases in the northeast region
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