Research Article
Salmeterol in nocturnal asthma: a double blind, placebo controlled trial of a long acting inhaled beta 2 agonist.
British Medical Journal 1990; 301 doi: https://doi.org/10.1136/bmj.301.6765.1365 (Published 15 December 1990) Cite this as: British Medical Journal 1990;301:1365
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