3940
Tetrazolium bromide salt and lactate dehydrogenase release assays were used to study the cytotoxicity .
 Chemical: Tetrazolium bromide salt; Chemical: lactate
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: Tetrazolium bromide salt; Chemical: lactate