13430
Significantly fewer TUNEL - positive cells were observed in the eyes of GGA - treated mice than controls after irradiation ( p < 0 . 01 ) .
 Chemical: GGA
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: GGA