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Impact of early - life stress , on group III mGlu receptor levels in the rat hippocampus : effects of ketamine , electroconvulsive shock therapy and fluoxetine treatment .
 Chemical: ketamine; Chemical: fluoxetine
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: ketamine; Chemical: fluoxetine