Documents Savoirs Disability status and quality of life in multiple sclerosis: non-linearity of the Expanded Disability Status Scale (EDSS) Wiesmeth Susanne, Spindler Milena, Wirtz Markus, Schipper Sabine, Klewer Jörg, Kugler, Pöhlau Dieter, Twork Sabine, Kugler Joachim