Fourth Charles Heidelberger Conference on Transformation and Chemotherapy¹

This symposium was held December 7–10, 1991, in Marina del Rey, California, at the Doubletree Hotel. The meeting was sponsored by the following organizations: U.S. Environmental Protection Agency; U.S. Department of Energy; U.S. National Institute of Environmental Health Science; Bristol-Myers Squibb Research Institute, Japan; Taiho Pharmaceutical Co., Japan; Mitsubishi Kasei Co., Japan; Wakunaga Pharmaceuticals Co., Ltd., Japan; Biwako Institute of the Otsuka Pharmaceutical Co., Ltd., Japan; Amgen Inc., California; United Cancer Research Society, California; Hoffman-LaRoche, Inc., New Jersey; The Upjohn Company, Michigan; Bristol-Myers Squibb Company, New Jersey; and Lilly Research Laboratories, Indiana.