Additional file 1: Table S1. of Recommendations for cerebrospinal fluid collection for the analysis by ELISA of neurogranin trunc P75, α-synuclein, and total tau in combination with Aβ(1–42)/Aβ(1–40) VandersticheleHugo DemeyerLeentje JanelidzeShorena CoartEls StoopsErik MaurooKimberley HerbstVictor FrançoisCindy HanssonOskar 2017 Concentrations (pg/mL) of neurogranin trunc P75, α-synuclein, and total tau in the CSF samples included in the study. Table S2. Biomaterials and test procedure. Table S3. Optimization of CSF collection procedures. Standardized mean concentrations for each CSF SOP, effect sizes, and p values. Table S4. Optimization of CSF collection procedures. Standardized mean concentrations for each factor, effect sizes and p values. Figure S1. Statistical analysis of the CSF SOP experiment. Figure S2. Analytical performance data for the neurogranin trunc P75 ELISA. Figure S3. Analytical performance data for the α-synuclein ELISA. (DOCX 192 kb)