Correlation cytokines with salivary flow. Cytokine data were analyzed for correlation with salivary flow from mice at 20 weeks of age using the non-parametric Spearman's Rho test. The correlation coefficient (r) and P-values are indicated. Data on the x-axis for figure A are plotted in log-scale. Strong correlations were found for hTNFR1 (A) in SGs and IL-12p70 (B), IL-4 (C), IL-5 (D) in plasma.