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The present study reconstructed the white matter network of 55 nondemented individuals with type 2 diabetes ( mean age 71 +/- 4y ) and 50 age - , sex - and education - matched controls using diffusion MRI based fiber tractography .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None