Lennon VA, Kryzer TJ, Pittock SJ, Verkman AS, Hinson SR: IgG marker of optic-spinal multiple sclerosis binds to the aquaporin-4 water channel. J Exp Med 202: 473-477, 2005
Geurts JJ, Stys PK, Minagar A, Amor S, Zivadinov R: Gray matter pathology in (chronic) MS: modern views on an early observation. J Neurol Sci 282: 12-20, 2009