December 17, 2014 jama.com Volume 312, Number 23 Pages 2457-2586 Research Opinion Clinical Review & Education Original Investigation Viewpoint Care of the Aging Patient 2510 Low-Dose Aspirin for Primary 2493 Flavorings in Electronic Cigarettes: An Prevention of Cardiovascular Events in Japanese Patients 60 Years or Older With Atherosclerotic Risk Factors: A Randomized Clinical Trial Unrecognized Respiratory Health Hazard? 2551 The Diagnosis and Management of Mild Cognitive Impairment: A Clinical Review JL Barrington-Trimis, JM Samet, and R McConnell KM Langa and DA Levine 2495 Ebola Virus Disease and the Need for New Personal Protective Equipment Y Ikeda and Coauthors MB Edmond, DJ Diekema, and EN Perencevich 2521 Entecavir vs Lamivudine for Prevention 2497 Is the United States Prepared for Ebola? LO Gostin, JG Hodge, and S Burris of Hepatitis B Virus Reactivation Among Patients With Untreated Diffuse Large B-Cell Lymphoma Receiving R-CHOP Chemotherapy: A Randomized Clinical Trial 2499 Ebola in the United States: EHRs as a Public Health Tool at the Point of Care KD Mandl H Huang and Coauthors 2531 Effects of High vs Low Glycemic Index A Piece of My Mind of Dietary Carbohydrate on Cardiovascular Disease Risk Factors and Insulin Sensitivity: The OmniCarb Randomized Clinical Trial 2501 The Half-Wall W Rafelson and TL Brown FM Sacks and Coauthors 2503 When Should Aspirin Be Used for Prevention of Cardiovascular Events? 2542 Uptake and Costs of Hypofractionated vs Conventional Whole Breast Irradiation After Breast Conserving Surgery in the United States, 2008-2013 JE Bekelman and Coauthors Editorial JM Gaziano and P Greenland 2505 Optimal Antiviral Prophylaxis Against Hepatitis B Reactivation in Patients Receiving Rituximab-Based Chemotherapy for Lymphoma JS Abramson and RT Chung From The JAMA Network 2562 Oral Anticoagulants and the Risk of Intracranial Hemorrhage PM Vespa JAMA Clinical Challenge 2564 Pustulonodular Lesion on the Nose P Gundelly and M Young From the Medical Letter on Drugs and Therapeutics 2566 A Stool DNA Test (Cologuard) for Colorectal Cancer Screening Continuing Medical Education 2567 Online Quiz Questions JAMA Revisited 2577 Is Aspirin a Dangerous Drug? JAMA Patient Page 2585 Breast Cancer Screening: Benefits and Harms 2508 Role of Glycemic Index in the Context of an Overall Heart-Healthy Diet RH Eckel LETTERS NEWS & ANALYSIS HUMANITIES Research Letter 2477 Medical News & Perspectives 2470 The Art of JAMA 2569 Durability and Benefits of an 2481 Global Health 2576 Poetry and Medicine Outpatient Antimicrobial Stewardship Intervention After Discontinuation of Audit and Feedback 2482 News From the Centers for Disease Control and Prevention JS Gerber and Coauthors Comment & Response 2570 Assessment of Outcomes of Hepatitis C Treatment 2572 Causes of Ferritin Elevation 2572 Prevention of Noncommunicable Diseases Downloaded From: http://jama.jamanetwork.com/ on 12/22/2014 Issue Highlights and Complete Contents on page 2463