Letter
Bronchoconstriction in response to ipratropium bromide.
Br Med J (Clin Res Ed) 1983; 286 doi: https://doi.org/10.1136/bmj.286.6380.1825-b (Published 04 June 1983) Cite this as: Br Med J (Clin Res Ed) 1983;286:1825
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