15324
Our results indicated that potassium dichromate could decrease cell viability and induce DNA damage in human B lymphoblastoid cells in a time - and concentration - dependent manner , but the toxicity of nickel chloride was not so obvious at concentrations used in our study .
 Chemical: potassium dichromate; Chemical: nickel chloride
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: potassium dichromate; Chemical: nickel chloride