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Persistent geotropic direction‐changing positional nystagmus with a null plane: The light cupula |
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| Authors: | Chang‐Hee Kim MD Min‐Beom Kim MD Jae Ho Ban MD PhD |
| Affiliation: | 1. Department of Otorhinolaryngology–Head and Neck Surgery, Konkuk University Medical Center, Konkuk University School of Medicine;2. Department of Otorhinolaryngology–Head and Neck Surgery, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, , Seoul, Korea |
| Abstract: | |
| Keywords: | Benign paroxysmal positional vertigo direction‐changing positional nystagmus head roll test null plane geotropic nystagmus |