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Fig. 4 | Alzheimer's Research & Therapy

Fig. 4

From: Core Alzheimer’s disease cerebrospinal fluid biomarker assays are not affected by aspiration or gravity drip extraction methods

Fig. 4

Error bar plot for the standardised difference in biomarker levels between extraction methods. Biomarker values were standardised by removing the mean from each value and then dividing by the standard deviation. Normalised values of biomarkers tested from the gravity drip extraction method were then removed from the values of biomarkers from the aspiration method for plotting. Error bars represent the difference values from each participant, with the mid-point being the point between the minimum and maximum difference values

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Alzheimer's Research & Therapy

ISSN: 1758-9193