Figure 1From: Treatment outcome of chronic low back pain and radiographic lumbar disc degeneration are associated with inflammatory and matrix degrading gene variants: a prospective genetic association study Scattergram of DNA yield ( μg ) in 89 blood and saliva samples. Scattergram of total DNA yield (μg) in 89 blood and saliva samples. The dashed line represents the mean value and continuous lines denote standard error of mean (SEM).Back to article page