Original Article Immunomodulatory Treatment in Guillain- Barré Syndrome Patients with Poor Response to Initial Treatment in Neurological Institute of Thailand: A Single- Center Retrospective Observational Study Siddhicet Triratjaroenvet, Narupat Suanprasert Guillain-Barré syndrome (GBS) is an immunemediated peripheral neuropathy and is the most common cause of acute flaccid paralysis with an annual worldwide incidence of approximately 1-2 per 100,000 person-year.. ตุลาคม - ธันวาคม 2567