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APA Citation
Lin, H., Qian, Z. (., Guo, Y., Zheng, Y., Ai, S., Hang, J., Wang, X., Zhang, L., Liu, T., Guan, W., Li, X., Xiao, J., Zeng, W., Xian, H., Howard, S. W., Ma, W., & Wu, F. (2018). the attributable risk of chronic obstructive pulmonary disease due to ambient fine particulate pollution among older adults. Environment international, 113, 143–148. http://access.bl.uk/ark:/81055/vdc_100060709777.0x000058