Neuropathy and IgM M-proteins: prognostic value of antibodies to MAG, SGPG, and sulfatide - Eurelings, M; Moons, K G; Notermans, NC; Sasker, LD; De Jager, AE; Wintzen, AR; Wokke, J H; van den Berg, LH (Neurology, 2001)