25375
OBJECTIVE : To investigate the antioxidant role in reversing cytogenetic changes caused by solvent exposure in paint industry . Subjects and METHODS : A prospective controlled clinical trial was performed on 39 workers exposed to solvents and 39 workers not exposed to solvents by supplying a mixture of antioxidant vitamins ( A , C , E and selenium ) and the after effects of such regimen were analyzed .
 Chemical: vitamins ( A , C , E; Chemical: selenium
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: vitamins ( A , C , E; Chemical: selenium