19579
Simulations within a large rheumatoid arthritis ( RA ) population showed that DAS remission rates were 38 % for 8 mg / kg and 24 % for 4 mg / kg .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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