Now in its thirteenth edition and containing 115 new entries, Thomas H. Shepard's Catalog of Teratogenic Agents is the most comprehensive one-volume reference of its kind. Essential for geneticists, teratologists, and pharmacologists, it presents information on more than 3,200 teratogenic agents in a ready-reference format, covering pharmaceuticals, chemicals, environmental pollutants, food additives, household products, viruses, genes, and maternal conditions. These agents are listed alphabetically, and each entry briefly summarizes research procedures and results. A complete list of references is included for each agent.