24589
Conclusion : Various histological alterations were observed in mice exposed to radioiodine , that is , an increase in apoptotic acini and ductal cells and functional SG deterioration .
 Chemical: radioiodine
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: radioiodine