20707
We tested the protein function by 125I uptake and efflux experiments ; finally the cytotoxic effect of 131I was determined with a clonogenic assay .
 Chemical: 125I; Chemical: 131I
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: 125I; Chemical: 131I