Evidence for improving palliative care at the end of life: A systematic review

Karl A. Lorenz, Joanne Lynn, Sydney M. Dy, Lisa R. Shugarman, Anne Wilkinson, Richard A. Mularski, Sally C. Morton, Ronda G. Hughes, Lara K. Hilton, Margaret Maglione, Shannon L. Rhodes, Cony Rolon, Virginia C. Sun, Paul G. Shekelle