1. Center for Healthcare Organization and Implementation Research, Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Massachusetts
2. The Pulmonary Center, Boston University School of Medicine, Boston, Massachusetts
3. The Dartmouth Institute for Health Policy and Clinical Practice, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire
4. Section of Palliative Care, Department of Medicine, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire