Fig. 4From: Heterogeneity of cough hypersensitivity mediated by TRPV1 and TRPA1 in patients with chronic refractory coughGender difference in AITC and capsaicin cough sensitivity measured as C2 or C5. AITC (Panels a and b), capsaicin (Panels c and d). C2: the lowest concentrations of AITC or capsaicin which evoked two to four coughs; C5: the lowest concentrations of AITC or capsaicin which evoked five coughs or more. Horizontal lines and error bars represent mean values and 95% confidence intervals of log C2 or log C5Back to article page