Heres the perfect review book for USMLE exam preparation and for immunology courses! A companion to Drs. Abbas and Lichtmans Cellular and Molecular Immunology and Basic Immunology, it focuses on the key experimental observations that underlie the science of immunology at the molecular, cellular, and whole organism level as well as the conclusions that can be drawn from these observations. Chapters follow the organization of the parent textbooks and feature a brief summary of vital knowledge . Approximately 500 USMLE-style review questions . and answers with rationales.