1. Center for Healthcare Organization and Implementation Research (CHOIR) VA Boston Healthcare System Boston, Massachusetts; and the Department of Surgery Boston University School of Medicine Boston, Massachusetts
2. Center for Healthcare Organization and Implementation Research (CHOIR) VA Boston Healthcare System Boston, Massachusetts; and the Healthcare Administration Sawyer Business School Suffolk University Boston, Massachusetts
3. Department of Surgery, Boston University School of Medicine Boston, Massachusetts; Department of Surgery VA Boston Healthcare System West Roxbury, Massachusetts; and the Harvard Medical School Boston, Massachusetts