[Vertical downbeat nystagmus in benign paroxysmal positional vertigo].
N L Kunel'skayaE V BaybakovaM A ChugunovaE A ManaenkovaE S YanyushkinaYa Yu NikitkinaPublished in: Vestnik otorinolaringologii (2021)
To distinguish atypical forms of BPPV with downbeating vertical nystagmus and the central positional syndrome.