title: Effects of the environment upon fetal development: concepts and design.
abstract: A brief description is presented on the known causes of development defects in humans. The definition of "teratogen" is expanded to include other aspects of developmental toxicity and the techniques used to assess environmental effects are discussed. A method for assessing human risk with a potential developmental toxin is presented and some of the frustrations confronting developmental toxicologists are outlined.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000517:prevention & control; D004777:Environment; D005260:Female; D005333:Fetus / Q000502:physiology*; D006801:Humans; D011247:Pregnancy; D013723:Teratogens
chemical_list: D013723:Teratogens