Link to the Show / Show Notes This summary covers the issue of December 24, 2009. Featured are articles on the clinical features of the initial cases of 2009 H1N1 virus infection in China, genetic variants associated with Lp(a) lipoprotein level and coronary disease, long-term outcome associated with early repolarization, and a sensitive troponin T assay in stable coronary artery disease; a review article on Barrett's esophagus; a case report of a man with fever and respiratory failure; and Perspective articles on getting the facts straight on health care reform, on screening mammography, and on cervical-cancer screening.