title: Validity of biological tests in epidemiological toxicology.
mesh_terms: D001681:Biological Assay; D001699:Biometry; D001773:Blood Cells; D004781:Environmental Exposure; D004782:Environmental Health; D004798:Enzymes / Q000032:analysis; D004812:Epidemiologic Methods; D006801:Humans; D008433:Mathematics; D011581:Psychological Tests; D013223:Statistics as Topic; D014116:Toxicology
chemical_list: D004798:Enzymes