Uji validitas dan reliabilitas Inflammatory Neuropathy Cause and Treatment (INCAT) Disability and Sensory Sum Score versi bahasa Indonesia (INCAT-Ina) pada pasien Chronic Inflammatory Demyelinating Polyneuropathy = Validity and reliability test of Inflammatory Neuropathy Cause and Treatment (INCAT) Disability and Sensory Sum Score Indonesian version (INCAT-Ina) in patients with Chronic Inflammatory Demielinating Polyneuropathy