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Twork, Sabine, Susanne Wiesmeth, Milena Spindler, Markus Wirtz, Sabine Schipper, Dieter Pöhlau, Jörg Klewer, and Joachim Kugler. Disability Status and Quality of Life in Multiple Sclerosis: Non-linearity of the Expanded Disability Status Scale (EDSS). BioMed Central, 2010.

Twork, Sabine, et al. Disability Status and Quality of Life in Multiple Sclerosis: Non-linearity of the Expanded Disability Status Scale (EDSS). BioMed Central, 2010.