16406
The cell viability and parameters associated with nuclear morphology , mitochondrial function , intracellular calcium concentration , and oxidative stress indicative of prelethal cytotoxicity and representative of different mechanisms of toxicity were evaluated .
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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:
 None