CSF Cell: Cell Count, Cytomorphology, Cytology, and Immunophenotyping.- Nephelometry and Turbidimetry: Methods to Quantify Albumin and Immunoglobins Concentrations in Clinical Neurochemistry.- Oligoclonal Bands: Isoelectric Focusing and Immunoblotting, and Determination of Free Light Chains in the Cerebrospinal Fluid.- Abeta CSF LC-MS.- Immunoassay and Mass Spectrometry Methods for Tau Protein Quantification in the Cerebrospinal Fluid.- CSF RT-QuIC and the Diagnosis of Creutzfeldt-Jakob Disease.- Lumbar Puncture: Consensus Guidelines.- Pre-Analytical Processing and Biobanking Protocol for CSF Samples.- Communicating Complex Results of Cerebrospinal Fluid Analysis.- Method and Clinical Validation of Biomarkers for Neurodegenerative Diseases.- Sample Preparation for Proteomic Analysis of Cerebrospinal Fluid.- Brain Biomarkers: Follow Up of RNA Expression Discovery Approach - CSF Assays for Neurogranin, SNAP-25, and VILIP-1.- Quantification of the Neurofilament Light Chain Protein by Single Molecule Array (Simoa) Array.