Hierarchical clustering of differentially expressed genes in FHL versus controls. Differentially regulated genes were identified using analysis of variance (false discovery rate 5%) followed by Tukey post-hoc testing. Individual patients are oriented in columns and expression level for each gene oriented in rows. Red, yellow, and blue colors represent expression levels that are greater than, equal to, or less than the mean expression levels, respectively, in all samples. The color-coded bar at the bottom of the heat-map represents controls in yellow and patients (P59, P33, P59 P1002, P101, P76, P92, P94, P98, P66, and P96) in red.