{HEAD ~ The object} of {TAIL ~ the present invention} is achieved by the use of individual or a mixture of fumaric acid derivative for preparing a pharmaceutical composition for treating mitochondrial diseases, especially for treating Alzheimers disease, Parkinsons syndrome, Chorea Huntington disease, retinopathia pigmentosa and mitochondrial encephalomyopathy 
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{ HEAD ~ The object } of { TAIL ~ the present invention } is achieved by the use of individual or a mixture of fumaric acid derivative for preparing a pharmaceutical composition for treating mitochondrial diseases , especially for treating Alzheimers disease , Parkinsons syndrome , Chorea Huntington disease , retinopathia pigmentosa and mitochondrial encephalomyopathy
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