Fig. 3From: Clinical and analytical comparison of six Simoa assays for plasma P-tau isoforms P-tau181, P-tau217, and P-tau231Scatterplots of the six P-tau isoforms, color-coded for diagnostic group. Correlation coefficient rho is calculated using Spearman’s rank correlation. Controls are presented in green and patients with AD dementia in purple. P-tau phosphorylated tauBack to article page