Ivan A. Ross, Biologist (Ret’d), U.S. Food and Drug Administration (FDA), participated in planning and conducting toxicology research projects and related programs and policies to ensure they meet the needs of the United States of America’s food programs and responsibilities. He also developed, validated, and documented state-of-the-art analytical methods for specific specimens, compounds, or classes of compounds as necessary for increased efficiency and assurance of accuracy. Dr. Ross has published several research articles; four reference books, Medicinal Plants of the World: Chemical Constituents, Traditional and Modern Medicinal Uses, and Volume One of this series, Plant-Based Therapeutics, Volume One, Cannabis sativa.