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Machado - Joseph disease ( MJD ) belongs to a group of clinically and genetically heterogeneous neurodegenerative disorders characterized by progressive cerebellar ataxia .
 Machado - Joseph disease, MJD, neurodegenerative disorders, progressive cerebellar ataxia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 Machado - Joseph disease, MJD, neurodegenerative disorders, progressive cerebellar ataxia