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Our aim is to verify the alterations in the HRK gene in primary central nervous system lymphomas ( PCNSLs ) .
 primary central nervous system lymphomas, PCNSLs
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 primary central nervous system lymphomas, PCNSLs