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In the present study , we have used MTT reduction of the whole tissue to clarify whether the production of this complex 3 - D - model is transferable into other laboratories and whether these tissues can be constructed reproducibly .
 Chemical: MTT
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: MTT