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The same holds true for the treatment with selective serotonin reuptake inhibitors ( SSRIs ) , which have been shown to prevent or reverse some stress - induced effects .
 Chemical: serotonin
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: serotonin