CNTN1 and Guillain-Barre syndrome: CIDP, Chronic inflammatory demyelination polyradiculoneuropathy; A-CIDP, acute-onset CIDP; CSF: Cerebrospinal fluid; DADS, Distal acquired demyelinating and symmetric neuropathy; dmL, Distal motor latencies; GBS, Guillain-Barré syndrome; IVIg, Intravenous immunoglobulins, LLS, Lewis-Summer syndrome; MADSAM, Multifocal acquired demyelinating sensory and motor neuropathy; MAG, Myelin-associated glycoprotein; NCV, Nerve conduction velocity; NF155, Neurofascin 155; CNTN1, Contactin 1 [3-5]