Neuromyelitis optica spectrum disorders initiated with dysphagia and upbeat nystagmus: one case report
WU Jing, CUI Guo-hong, CHEN Wei, SUN Xu-hong, QIAO Yuan
Chinese Journal of Contemporary Neurology and Neurosurgery . 2019, (2): 132 -136 .  DOI: 10.3969/j.issn.1672-6731.2019.02.011