![A randomised double-blind, cross-over trial of 4-aminopyridine for downbeat nystagmus--effects on slowphase eye velocity, postural stability, locomotion and symptoms]()
A randomised double-blind, cross-over trial of 4-aminopyridine for downbeat nystagmus--effects on slowphase eye velocity, postural stability, locomotion and symptomsClaassen, J.; Spiegel, R.; Kalla, R.; Faldon, M.; Kennard, C.; Danchaivijitr, C.; Bardins, S.; Rettinger, N.; Schneider, E.; Brandt, T.; Jahn, K.; Teufel, J.; Strupp, M.; Bronstein, A. · Journal of Neurology, Neurosurgery & Psychiatry · 2013