1. Department of Radiation Oncology, Brigham and Women’s Hospital/Dana-Farber Cancer Institute/Harvard Medical School, Boston, Massachusetts
2. Laboratory for Innovation Science at Harvard, Harvard University, Boston, Massachusetts
3. Institute for Quantitative Social Science, Harvard University, Cambridge, Massachusetts
4. Harvard Business School, Boston, Massachusetts
5. Department of Radiology, Brigham and Women’s Hospital, Boston, Massachusetts
6. The National Bureau of Economic Research, Cambridge, Massachusetts