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Molecular study and neuropsychological analysis were performed concurrently on 49 patients with Duchenne muscular dystrophy ( DMD ) in order to find a molecular explanation for the cognitive impairment observed in most DMD patients .
 Disease: Duchenne muscular dystrophy; Disease: DMD; Disease: cognitive impairment; Disease: DMD
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease 
Text: {0} 
Answer:
 Disease: Duchenne muscular dystrophy; Disease: DMD; Disease: cognitive impairment; Disease: DMD