Link to the Show / Show NotesThis summary covers the issue of December 21, 2006. Featured are articles on diagnostic techniques for ventilator-associated pneumonia, biomarkers for the prediction of cardiovascular events and death, ertapenem versus cefotetan prophylaxis in elective colorectal surgery, PET of brain amyloid and tau in mild cognitive impairment, and protein turnover and Alzheimer's disease; review articles on teaching surgical skills and on autoimmune pancreatitis; a case report of a woman with systemic lupus erythematous, seizures, and right arm weakness; and Perspective articles on the recovery and rehabilitation of soldiers injured in Iraq and on the limitations of risk factors as prognostic tools.