Figure 1From: Determination of the discriminant score of intestinal microbiota as a biomarker of disease activity in patients with ulcerative colitis Dendrograms based on ward linkage rescaled distance cluster combine. The difference of intestinal flora was thought to be greatest between active phase patients (group I) and non-consanguineous families (group IV). However, as seen, cluster analysis between group I and group IV by using all OTU values did not produce visible separation between group I and IV. This was considered to be a serious limitation of cluster analysis.Back to article page