Haschek and Rousseaux’s Handbook of Toxicologic Pathology: Volume 1: Principles and Practice of Toxicologic Pathology is a key reference on the integration of structure and functional changes in tissues associated with the response to pharmaceuticals, chemicals and biologics. Volume 1 of the Fourth Edition covers the practice of toxicologic pathology in three parts: Principles of Toxicologic Pathology, Methods in Toxicologic Pathology, and the Practice of Toxicologic Pathology. Completely revised with a number of new chapters, Volume 1 of the Handbook of Toxicologic Pathology is an essential part of the most authoritative reference on toxicologic pathology for pathologists, toxicologists, research scientists, and regulators studying and making decisions on drugs, biologics, medical devices, and other chemicals, including agrochemicals and environmental contaminants.