Figure 2From: Integration of gene expression, clinical, and epidemiologic data to characterize Chronic Fatigue SyndromeHierarchical clustering of the differential gene expression patterns for gradual compared with sudden onset in CFS subjects. Dendograms showing average-linkage hierarchical clustering of CFS subjects. A blue circle indicates a subject with a sudden onset of CFS symptoms, yellow indicates a gradual onset. The black circle is a subject whose onset was between that defined by sudden/gradual onset.Back to article page