Author: Robert C. James

STEPHEN M. ROBERTS , Ph D, is Professor and Program Director of the Center for Environmental and Human Toxicology at the University of Florida, Gainesville, Florida, USA. ROBERT C. JAMES, Ph D, is Senior Principal Scientist, Tox Strategies in Boise, ID, Tallahassee, Florida, USA. PHILLIP L. WILLIAMS, Ph D, is Dean of the College of Public Health and Georgia Power Professor of Environmental Health Science at the University of Georgia, Athens, Georgia, USA.