[1]Department of Dermatology Ernst von Bergmann General Hospital Potsdam Germany;
[2]Almirall S.A Barcelona Spain;
[3]Department of Dermatology University Hospital Charité Berlin Germany;
dimethylfumarate (DMF); monoethylfumarate (MEF); monomethylfumarate (MMF); fumaric acid esters(FAEs); psoriasis;