Toxicology and Applied Pharmacology, 181(3), 184. Some inspectors have additional training in areas such as biology, toxicology and epidemiology. Heme biosynthesis is used as biomarker in environmental toxicology studies. The FDA's National Center for Toxicology Research conducted its own research studies. Drug-induced hemangiomas are reported side-effects for some drugs in nonclinical toxicology animal models, studying carcinogenesis. This has been confirmed by further studies evaluating the toxicology of kava drink. Investigators evaluated Lanza's body, looking for evidence of drugs or medication through toxicology tests. He applied biclustering methods to drug discovery and toxicology. They also recommended long-term animal toxicology studies. Poison has allowed much progress in branches, toxicology, and technology, among other sciences. Ecotoxicology is a multidisciplinary field, which integrates toxicology and ecology. STEL is a term used in occupational health, industrial hygiene and toxicology. The Commission's toxicology tests revealed nothing significant. In November 2013, the editors of "Food and Chemical Toxicology" retracted the paper. Toxicology testing became important in the 20th century.