1 Richard A and Susan F Smith Center for Outcomes Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA; Harvard Medical School, Harvard University, Boston, MA, USA.
2 Richard A and Susan F Smith Center for Outcomes Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
3 Harvard Medical School, Harvard University, Boston, MA, USA; Department of Health Policy and Management, Harvard T H Chan School of Public Health, Boston, MA, USA.
4 Department of Health Policy and Management, Harvard T H Chan School of Public Health, Boston, MA, USA.
5 Richard A and Susan F Smith Center for Outcomes Research, Beth Israel Deaconess Medical Center, Boston, MA 02215, USA; Harvard Medical School, Harvard University, Boston, MA, USA; Department of Health Policy and Management, Harvard T H Chan School of Public Health, Boston, MA, USA. Electronic address: rwadhera@bidmc.harvard.edu.