Fig. 3From: Interlaboratory proficiency processing scheme in CSF aliquoting: implementation and assessment based on biomarkers of Alzheimer’s diseaseResults of interlaboratory processing scheme, for analytes of interest: Aβ1–42 (a), pTau181 (b), and albumin (c). Concentrations obtained in aliquots prepared by a given laboratory from primary sample presented as filled circles; laboratory-specific averages presented as hollow circles. Aβ amyloid betaBack to article page