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Cortical maps revealed severe gray - matter deficits in the cingulate , limbic , and paralimbic cortices of MA abusers ( averaging 11 . 3 % below control ; p < 0 . 05 ) .
 Chemical: MA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: MA