1. Partners Healthcare, Information Systems, Somerville, MA, USA
2. Department of Health Policy and Management, Harvard T.H. Chan School of Public Health, Boston, MA, USA
3. Brigham and Women’s Hospital, Boston, MA, USA
4. School of Biomedical Informatics, University of Texas Health Science Center, Houston, TX, USA
5. Department of Health Care Policy, Harvard Medical School, Boston, MA, USA and
6. Department of Medicine, Harvard Medical School, Boston, MA, USA