Advanced Dementia - N Engl J Med [2015] http://www.nejm.org/doi/full/10.1056/NEJMcp1412652 2015 article http://www.nejm.org/doi/full/10.1056/NEJMcp1412652 Advanced Dementia Susan L. Mitchell http://www.nejm.org/doi/full/10.1056/NEJMcp1412652