8599
Significant increases in Spi ( - ) mutant frequencies ( MFs ) were observed in the kidneys of p53 - deficient gpt delta mice given 5 mg / kg of OTA , but not in the kidneys of p53 - proficient gpt delta mice given the same dose .
 Chemical: OTA
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: OTA