6037
Correspondingly , induction of Bcl - 2 mitochondrial apoptotic pathway by trimethyltin was down regulated by Ginkgo biloba treatment .
 Chemical: trimethyltin
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: trimethyltin