Brickell, K. L. et al. Ethnic differences in syringomyelia in New Zealand. J. Neurol. Neurosurg. Psychiatry 77, 989–991 (2006).
Sakushima, K. et al. Nationwide survey on the epidemiology of syringomyelia in Japan. J. Neurol. Sci. 313, 147–152 (2012).
Milhorat, T. H. Classification of syringomyelia. Neurosurg. Focus 8, 1–6 (2000).
Bogdanov, E. I. & Mendelevich, E. G. Syrinx size and duration of symptoms predict the pace of progressive myelopathy: retrospective analysis of 103 unoperated cases with craniocervical junction malformations and syringomyelia. Clin. Neurol. Neurosurg. 104, 90–97 (2002).
Milhorat, T. H. et al. Dysesthetic pain in patients with syringomyelia. Neurosurgery 38, 940–947 (1996).
National Institute for Health and Care Excellence (NICE). Neuropathic pain in adults: pharmacological management in non-specialist settings. Clinical Guideline [CG173]. Published 20 November 2013.