4592
Treatment of an ' eastern ' strain of EHDV - 2 with saliva proteins of either C . sonorensis or C . nubeculosus cleaved VP2 , but a ' western ' strain of EHDV - 2 remained unmodified .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
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