Progressive dizziness and nausea for two months, vomiting and gait instability for 20 days
YAO Yuan, YUAN Jing, ZHU Yi-cheng, CUI Li-ying
Chinese Journal of Contemporary Neurology and Neurosurgery . 2015, (1): 77 -79 .  DOI: 10.3969/j.issn.1672-6731.2015.01.018