Teratogenic exposures during embryonic or foetal life can produce permanent abnormalities of structure or function. Although the number of individuals affected is relatively small - perhaps accounting for about one-tenth of all birth defects - teratogenic exposures are nevertheless important because they are potentially preventable. In this volume J.M. Friedman, MD, PhD, and Janine E. Polifka, PhD, present an updated version of their catalogue for...