1 Harvard Medical School, Division of Adult Psychosocial Oncology and Palliative Care, Dana Farber Cancer Institute, 450 Brookline Avenue, Boston, MA, 02215, USA.
2 Division of Medical Toxicology, Department of Emergency Medicine, Brigham and Women's VC; Koch Institute for Integrated Cancer Research; Massachusetts Institute of Technology, The Fenway Institute 75 Francis Street, Boston, MA, 02115, USA.
3 Center for Survey Research, University of Massachusetts, Boston 100 Morrissey Blvd, Boston, MA, 02125, USA.