3229
1B3 binds to PDGFRbeta with high affinity ( 9x10 ( - 11 ) M ) and blocks PDGF - BB from binding to the receptor with an IC ( 50 ) of approximately 1 . 2 nM .
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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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