170678
Cytoarchitecturally it is bounded internally by the granular retrolimbic area 29 , dorsally by the ventral posterior cingulate area 23 and ventrolaterally by the ectorhinal area 36 ( Brodmann-1909 ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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