Book excerpt: Blackwell Underground Clinical Vignettes: Internal Medicine I, Third Edition is your primary source for clinically relevant, case-based material essential for USMLE Step 2 review. Each Clinical Vignette simulates USMLE format, and includes classic buzzwords in history taking, physical examination, lab, imaging, and pathology. Internal Medicine I covers cardiology, endocrinology, gastroenterology, and hematology/oncology; another volume, Internal Medicine II, covers dermatology, infectious disease, nephrology, urology, pulmonary medicine, and rheumatology. Blackwell Underground Clinical Vignettes: Internal Medicine I, Third Edition is perfect for medical students. Physician assistants, nurse practitioners, and related health professionals will also find Underground Clinical Vignettes valuable.