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After IT morphine , the cerebrospinal fluid ( CSF ) glutamate concentration was increased in group M relative to both baseline and group C ( P < 0 . 05 ) .
 Chemical: morphine; Chemical: glutamate
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:
 Chemical: morphine; Chemical: glutamate