1571
Thus , we provide unequivocal evidence for the genotoxicity of both amalgams and resin - based dental fillings in humans not only by testing circulating lymphocytes but also by analyzing oral mucosa cells .
 Chemical: amalgams
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: amalgams