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Subcellular fractionation studies revealed that Mn ( 2 + ) was capable of inducing significant H2O2 production in the mitochondrial but not the cytosolic or nuclear fraction prepared from microglia .
 Chemical: Mn ( 2 + ); Chemical: H2O2
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: Mn ( 2 + ); Chemical: H2O2