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Nyffeler, Thomas; Stabba, Anne; Sturzenegger, Matthias (2003). Progressive myelopathy with selective involvement of the lateral and posterior columns after inhalation of heroin vapour. Journal of neurology, 250(4), pp. 496-8. Heidelberg: Springer-Medizin-Verlag 10.1007/s00415-003-1012-5
