Medical Detecting: Detecting Heart Disease

Learn about the tools and technology that help doctors find and diagnose problems with the heart. Easy-to-read text is paired with informative sidebars, a "That's Amazing!" special feature, a table of contents, quiz questions, a glossary, additional resources, and an index. This Focus Readers series is at the Navigator level, aligned to reading levels of grades 3-5 and interest levels of grades 4-7.