Figure 4From: Prostaglandin I2 enhances cough reflex sensitivity to capsaicin in the asthmatic airwayIndividual data of peripheral blood eosinophils at run-in period, at washout period and on treatment with beraprost and placebo in patients with stable bronchial asthma. Each horizontal bar represents geometric mean value. P values: Wilcoxon signed-ranks test.Back to article page