13386
The present communication investigates the effects of different perfluoroalkylated compounds ( PFCs ) on formation of reactive oxygen species ( ROS ) and cell death in cultured cerebellar granule cells .
 Chemical: oxygen
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: oxygen