Yamamoto, Richard S.; Richardson, Howard L.; Weisburger, Elizabeth K.; Weisburger, John H.; Benjamin, Timothy; Bahner, Carl Tabb; Yamamoto Richard S.; Experimental Pathology Branch, Division of Cancer Cause and Prevention, National Cancer Institute, National Institutes of Health, Public Health Service, U.S. Department of Health, Education, and Welfare; Richardson Howard L.; Pesticides Office Program, Environmental Protection Agency; Weisburger Elizabeth K.; Experimental Pathology Branch, Division of Cancer Cause and Prevention, National Cancer Institute, National Institutes of Health, Public Health Service, U.S. Department of Health, Education, and Welfare; Weisburger John H.; American Health Foundation; Benjamin Timothy; Experimental Pathology Branch, Division of Cancer Cause and Prevention, National Cancer Institute, National Institutes of Health, Public Health Service, U.S. Department of Health, Education, and Welfare; Bahner Carl Tabb; Carson-Newman College