Basic Consumer Health Information About Preventive Care Guidelines, Routine Health Screenings, Home-use Tests, Blood, Stool, and Urine Tests, Genetic Testing, Biopsies, Endoscopic Exams, and Imaging Tests, Such as X-ray, Ultrasound, Computed Tomography (ct), and Nuclear and Magnetic Resonance Imaging (MRI) Exams : Along With Facts About Diagnostic Tests for Allergies, Cancer, Diabetes, Heart and Lung Disease, Infertility, Osteoporosis, Sleep Problems, and Other Specific Conditions, A Glossary of Related Terms, and Directories of Additional Resources