1. Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada
2. Departments of Medicine, and Health Research Methods, Evidence, and Impact, McMaster University, Hamilton, Ontario, Canada
3. Department of Psychosocial Oncology and Palliative Care, Harvard Medical School, Boston, MA, USA
4. Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, Boston, MA, USA
5. Ariadne Labs, Brigham and Women’s Hospital & Harvard T. H. Chan School of Public Health, Boston, MA, USA
6. Department of Medicine, Brigham and Women’s Hospital, Boston, MA, USA