Tabs organized by lifespan, and within each tab, by body system. Coverage of the most common signs and symptoms of pathology. "Red flags" compartmentalize pathologies that would be most probable in various stages of the lifespan. Abundant tools, including standardized screening tools, questionnaires, lists and charts of signs and symptoms, and diagrams of methods of palpation, pediatric growth charts, and pictures of the most 25 common skin diseases.