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Ambient Particulate Matter and Emergency Department Visit for Chronic Obstructive Pulmonary Disease
Ji Su Oh, Sang Hyun Park, Myoung Kwan Kwak, Chang Hae Pyo, Keun Hong Park, Hahn Bom Kim, Seoung Yul Shin, Han Jo Choi
Journal of The Korean Society of Emergency Medicine. 2017;28(1):32-39. Published online February 28, 2017
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