Refractory cases of [[chronic immune demyelinating polyradiculoneuropathy]] may be treated with IV gamma-globulin, cyclosporin-A, total body lymphoid irradiation or [[Interferon-alfa]] ((Gorson KC, Ropper AH, Clark BD, et al. Treatment of Chronic Inflammatory Demyelinating Polyneuropathy with Interferon-a 2a. Neurology. 1998; 50:84–87)).