Is the association between inhaled beta-agonist use and life-threatening asthma because of confounding by severity?

P. Ernst, B. Habbick, S. Suissa, B. Hemmelgarn, D. Cockcroft, A. S. Buist, R. I. Horwitz, M. McNutt, W. O. Spitzer

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98 Scopus citations

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Medicine & Life Sciences