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For the first 2 donors tested , even the lowest concentration of Ab - 01 ( 0 . 1 mug / mL , 0 . 66 nM ) resulted in complete inhibition of the rhIL21 response , therefore the two subsequent donors were tested at increasing concentrations of Ab - 01 starting at 0 . 003 mug / mL .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
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