PMP22 and chronic inflammatory demyelinating polyradiculoneuropathy: Among a total of 209 keywords, the most used ones were ‘CIDP’, ‘Chronic inflammatory demyelinating polyneuropathy’, ‘autoantibody’, ‘neurofascin’, ‘autoimmune nodopathy’, and the most used keywords in the most cited articles were ‘ganglioside’, ‘gullian-barre syndrome’, “myelin”, ‘autoimmune neuropathy’, ‘axo-glial junction’.