3929
Among the 12 age - gender subgroups , the respective exposures ranged from 0 . 19 to 0 . 26 mu g / kg bw / day and from 0 . 33 to 0 . 46 mu g / kg bw / day .
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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:
 None