Jacobs, B C, van den Berg, B, Verboon, C, Chavada, G, Cornblath, D R, Gorson, K C, Harbo, T, Hartung, H-P, Hughes, R A C, Kusunoki, S, van Doorn, P A, Willison, H J & IGOS Consortium 2017, ' International Guillain-Barre Syndrome Outcome Study : protocol of a prospective observational cohort study on clinical and biological predictors of disease course and outcome in Guillain-Barre syndrome ', Journal of the Peripheral Nervous System, vol. 22, no. 2, pp. 68-76 . https://doi.org/10.1111/jns.12209 Jacobs, B C, van den Berg, B, Verboon, C, Chavada, G, Cornblath, D R, Gorson, K C, Harbo, T, Hartung, H P, Hughes, R A C, Kusunoki, S, van Doorn, P A, Willison, H J & the IGOS Consortium 2017, ' International Guillain-Barré Syndrome Outcome Study : protocol of a prospective observational cohort study on clinical and biological predictors of disease course and outcome in Guillain-Barré syndrome ', Journal of the Peripheral Nervous System, vol. 22, no. 2, pp. 68-76 . https://doi.org/10.1111/jns.12209 Journal of the Peripheral Nervous System, 22(2), 68-76. Wiley-Blackwell Publishing Ltd Journal of the Peripheral Nervous System, 22(2), 68-76. Wiley-Blackwell Journal of the peripheral nervous system, 22(2), 68-76. Wiley-Blackwell Journal of the Peripheral Nervous System, 22(2), 68-76