@misc{indiciaef5b11c1c9982, title = {Asthma exacerbations.}, author = {K Parameswaran and G S Berlyne and F E Hargreave}, year = {1999}, doi = {10.1016/s0140-6736(05)75967-5}, url = {https://pubmed.ncbi.nlm.nih.gov/10227248/}, note = {Source identifier: 10227248} }