1818
Intraventricularly administered kainic acid , which selectively destroys CA3 - 4 pyramidal cells , results in an increase of enkephalin immunostaining in mossy fibers and a significant increase in enkephalin - ir by radioimmunoassay in whole hippocampus .
 Anatomy: Intraventricularly; Anatomy: CA3 - 4 pyramidal cells; Anatomy: mossy fibers; Anatomy: hippocampus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: Intraventricularly; Anatomy: CA3 - 4 pyramidal cells; Anatomy: mossy fibers; Anatomy: hippocampus