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A comprehensive literature search of studies published through December 2012 regarding the diagnostic performance of ( 99m ) Tc - MIBI scan in the evaluation of thyroid nodules suspicious for malignancy was carried out .
 Chemical: ( 99m ) Tc - MIBI
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: ( 99m ) Tc - MIBI