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. Author manuscript; available in PMC: 2011 Jul 7.
Published in final edited form as: Pulm Pharmacol Ther. 2006 Oct 28;20(4):338–346. doi: 10.1016/j.pupt.2006.10.012

Fig. 4.

Fig. 4

Relationship between the total cough number with auditory counting and the capsaicin concentration. The group means and standard deviations of the cough numbers are plotted against the corresponding capsaicin concentrations on a linear scale. The diamond symbols represent the mean cough numbers for placebo treatment, the square symbols represent the mean cough numbers for 30 mg codeine treatment and the triangle symbols represent the mean cough numbers for 60 mg codeine treatment. There were no significant treatment effects.