It is recommended that you use this book alongside a standard textbook to test your comprehension of the material. When preparing for exams, this book can be used as quick, last minute review of high-yield facts. Please remember that while this book will be very useful for the USMLE Step 1 dan for reviewing the fundamentals of medical science for your cource exams, this review book should neither replace standard medical texts, lecture notes, nor substitute for sound clinical judgment. Ratherm it is intended to help you understand difficult concepts, review high-yield topics, and provide you with a small portable book that is easy to use to quiz yourself and classmates on these concepts. A bookmark is included so that you can easily cover up the answers on these concepts. A bookmark is included so that you can easily cover up the answers as you work through the question in each chapter. The compact, condensed design of this book is conducive to studying on the go.