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Morning-evening changes in airway responsiveness to methacholine in normal and asthmatic subjects: analysis using
R W Heaton1, M K Gillett, P D Snashall
1Department of Medicine, Charing Cross and Westminster Medical School, London.
Thorax
|September 1, 1988
Abstract:
In eight normal and eight asthmatic subjects airway responsiveness to methacholine was measured by means of partial flow-volume loops at 0800 and 1800 hours on the same day. Airway responsiveness was lower in the evening in both normal and asthmatic subjects.