CCL13 and asthma: The serum levels of TNF‐α (p = 0.025), IFN‐γ (p = 0.011), CCL22 (p = 0.022), IL‐12p70 (p = 0.021), CXCL10 (p = 0.028), CCL2 (p = 0.028), CCL13 (p = 0.024), IL‐4 (p = 0.026), IL‐13 (p = 0.024), and CCL11 (p = 0.028) were found to be downregulated in stable asthma when compared to acute asthma.