5985
In the brain , some mild changes were observed in the nerve cell bodies in the telencephalon , alteration in the thickness of the mesencephalon layers , and enlargement of blood vessel on the ventral surface of the cerebellum .
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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:
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