4558
Peak concentrations were > 6 microg / ml in 100 % of the OD group and in 67 % of the TD group ( P < 0 . 01 ) .
 None
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:
 None