Parikh Ravi B, Kirch Rebecca A, Smith Thomas J, Temel Jennifer S
From Harvard Medical School (R.B.P.) and Massachusetts General Hospital (J.S.T.) - both in Boston; the American Cancer Society, Washington, DC (R.A.K.); and Johns Hopkins University, Baltimore (T.J.S.).
N Engl J Med. 2013 Dec 12;369(24):2347-51. doi: 10.1056/NEJMsb1305469.