Progressive numbness of distal limbs for two years, unsteady gait for two months
MA Jun, WEI Yan-ping, ZHAO Da-chun, CUI Li-ying
Chinese Journal of Contemporary Neurology and Neurosurgery . 2016, (11): 808 -812 .  DOI: 10.3969/j.issn.1672-6731.2016.11.016