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A spacer device was modified to deliver aerosols of beclomethasone diproprionate, ipratropium and bromide salbutamol, to an asthmatic child with a tracheostomy, where symptoms were poorly controlled with nebulized therapy. This resulted in a marked improvement in symptoms and a dramatic reduction in the time spent administering drugs.
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O’Callaghan et al. (1989) studied this question.
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