3325
Sensory evoked field potentials were recorded from the mesencephalic reticular formation ( MRF ) , central gray ( CG ) and somatosensory cortex ( SCX ) , following incremental doses of halothane in freely - moving rats .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
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