A randomised double-blind, cross-over trial of 4-aminopyridine for downbeat nystagmus—effects on slowphase eye velocity, postural stability, locomotion and symptoms
Jens Claassen, Rainer Spiegel, Roger Kalla, Mary Faldon, Christopher Kennard, Chotipat Danchaivijitr, Stanislaw Bardins, Nicole Rettinger, Erich Schneider, Thomas Brandt, Klaus Jahn, Julian Teufel, Michael Strupp, Adolfo Bronstein
Journal of Neurology, Neurosurgery & Psychiatry Dec 2013, 84 (12) 1392-1399; DOI: 10.1136/jnnp-2012-304736
