2300
In vitro hydrolysis of ED was done in aqueous buffers ( pH 1 . 2 , 7 . 4 , 9 ) and in 80 % ( v / v ) human plasma ( pH 7 . 4 ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
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