PubMed · 1962 · 305 citations · 0 references
MedicineNeurologyOphthalmologyOtologyVestibular DisordersPositional TestingSymptom CharacterizationVertigo SyndromesVestibular PhysiologyVestibular TestingDirection-changing Positional NystagmusNystagmus CharacterizationNystagmus ExaminationVertical Positional NystagmusVertigo Characterization