PolyneuropathiesDiabetic NeuropathiesPeripheral Nervous System DiseasesNeural ConductionPolyradiculoneuropathyDiagnostic Techniques, NeurologicalElectrodiagnosisAlcoholic NeuropathyGuillain-Barre SyndromeAmyloid Neuropathies, FamilialAmyloid NeuropathiesDemyelinating DiseasesPrealbuminPolyradiculoneuropathy, Chronic Inflammatory DemyelinatingSural NervePOEMS SyndromeImmunoglobulin MAmyloidosisHexanesParaproteinemiasPeripheral NervesNervous System DiseasesDiflunisal