This is a comprehensive review guide for the USMLE Step 2 that uses practice tests to simulate the actual exam and familiarize students with the electronic format. In the updated Second Edition, medical students will find six practice tests with over 900 questions, answers with detailed explanations.Preface Acknowledgments Practice Test 1 Questions Answers Practice Test 2 Questions Answers Practice Test 3 Questions Answers Practice Test 4 Questions Answers Practice Test 5 Questions Answers Practice Test 6 Questions Answers References