@article{Liang2019, author = {Liang, Lirong and Cai, Yutong and Barratt, Benjamin and Lyu, Baolei and Chan, Queenie and Hansell, Anna L. and Xie, Wuxiang and Zhang, Di and Kelly, Frank J. and Tong, Zhaohui}, doi = {10.1016/s2542-5196(19)30085-3}, journal = {Lancet Planetary Health}, month = {jun}, pages = {e270-e279}, title = {Associations between daily air quality and hospitalisations for acute exacerbation of chronic obstructive pulmonary disease in Beijing, 2013–17: an ecological analysis}, url = {https://doi.org/10.1016/s2542-5196(19)30085-3}, volume = {3}, year = {2019} }