Sural NervePeripheral Nervous System DiseasesBiopsyHereditary Sensory and Motor NeuropathyPolyradiculoneuropathyPolyneuropathiesNeural ConductionCharcot-Marie-Tooth DiseasePeripheral NervesPolyradiculoneuropathy, Chronic Inflammatory DemyelinatingDemyelinating DiseasesCerebrospinal Fluid ProteinsNerve Fibers, MyelinatedPeroneal NeuropathiesMotor Neuron DiseasePeroneal NerveDiscriminant AnalysisSpinal NervesNeuritisTibial NerveDiabetic NeuropathiesSciatic NerveNerve FibersMicroscopy, ElectronParesthesiaAmyloid NeuropathiesPedigreeBiopsy, NeedlePain Insensitivity, CongenitalMedian NerveSensation DisordersElectromyographyLeprosy, TuberculoidAxonsOptic NerveTrichlorfonNerve RegenerationPeripheral Nerve InjuriesMyelin SheathUlnar NerveVisual Analog ScalePrealbuminLeprosy