title: Signs of the times: biomarkers in perspective.
authors.forename: Charles W
authors.initials: CW
authors.lastname: Schmidt
mesh_terms: D015415:Biomarkers / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods; D004787:Environmental Pollution / Q000032:analysis; D006801:Humans; D011634:Public Health / Q000379:methods*
chemical_list: D015415:Biomarkers