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In patients with schizophrenia , ketamine exacerbates the core symptoms of illness , supporting the hypothesis of a glutamatergic dysfunction .
 Disease: schizophrenia; Chemical: ketamine; Disease: glutamatergic dysfunction
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: schizophrenia; Chemical: ketamine; Disease: glutamatergic dysfunction