Figure 3From: Comparison of brush and biopsy sampling methods of the ileal pouch for assessment of mucosa-associated microbiota of human subjectsComparison of DNA yields. Comparison of bacterial and human host DNA yields from brush and biopsy methods. The bars represent the averaged brush and the averaged biopsy samples for each patient. Brush samples show a much larger ratio of bacterial 16S DNA to human TNF-α.Back to article page