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Captopril-induced cough reflex sensitization. Dose-response curve for capsaicin challenge up to a maximum response of 30 coughs/min; round, captopril; square, placebo. Values shown are mean and standard error of the mean. Reprinted from Morice AH, et al. Lancet 1987;2:1116-8, with permission of Elsevier [70].
