Ivan A. Ross, Biologist (Retired), U.S. Food and Drug Administration (FDA), participated in planning and conducting toxicology research projects, along with related programs and policies, to ensure they align with the needs of the United States' food programs and responsibilities. He also developed, validated, and documented advanced analytical methods for specific specimens, compounds, or classes of compounds as necessary to improve efficiency and ensure accuracy. Dr. Ross has published several research articles and four reference books: Medicinal Plants of the World: Chemical Constituents, Traditional and Modern Medicinal Uses, and for the series Plant-Based Therapeutics, Volume One, Cannabis sativa, and Volume Two, The Brassicaceae Family.