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In toxicology , the power of these methods lies in the possibility of determining a wide range of cell parameters , providing valuable information to elucidate cell growth and viability , metabolic activity , mitochondrial membrane potential and membrane integrity mechanisms .
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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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