Book excerpt: Kaplan Medical's USMLE Step 1 Qbook provides high-yield, exam-style practice and effective test-taking strategies to help you master all Step 1 topics. Our experts regularly review content to make sure you have the most up-to-date prep, realistic practice materials, and current test information so you can face the USMLE with confidence. The Best Review 850 exam-like practice questions you won't find anywhere else Explanations for each correct and incorrect answer choice 17 high-yield, exam-relevant practice sets in Anatomy, Physiology, Biochemistry, Microbiology/Immunology, Pathology/Pathophysiology, Pharmacology, and Behavioral Science/Biostatistics Test-taking strategies for every question type Study techniques to maximize your limited preparation time