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Feil, K.; Claaßen, J.; Bardins, S.; Teufel, J.; Habs, M.; Kalla, Roger; Strupp, M. (2013). Transition from downbeat to upbeat nystagmus caused by 4-aminopyridine. Journal of neurology, 260(5), pp. 1426-1428. Springer-Medizin-Verlag 10.1007/s00415-013-6907-1
