title: Future directions in the study of biological reactive intermediates.
mesh_terms: D000818:Animals; D001681:Biological Assay; D001711:Biotransformation; D002273:Carcinogens / Q000378:metabolism*; D006801:Humans; D009153:Mutagens / Q000378:metabolism*; D012306:Risk
chemical_list: D002273:Carcinogens; D009153:Mutagens