13605
No tissue - specific differences in PBDE congener profiles were found , while interspecies differences in PBDE profiles were evident .
 Chemical: PBDE; Chemical: PBDE
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: PBDE; Chemical: PBDE