14722
The pathologic features of SBMA are motor neuron loss in the spinal cord and brainstem , and diffuse nuclear accumulation and nuclear inclusions of mutant AR in residual motor neurons and certain visceral organs .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None