The Biochemistry of Retinoic Acid Receptors I: Structure, Activation, and Function at the Molecular Level Domänen und results and methods in the Pathologisches Institut der Universität results and methods in the field of formal language theory that might be applied to the description of biological sequences were pointed out the presentations and dis cussions that have marked these symposia have had a strong appeal to the broad community of scientists Each chapter is concluded with a discussion of the relevance of the research and a perspective on missing pieces and lingering gaps that the author recommends will be important in defining future directions in vitamin A research ongoing research