Louise Davies1,2,3, Luc G T Morris4. 1. The VA Outcomes Group, Department of Veterans Affairs Medical Center, White River Junction, Vermont. 2. Section of Otolaryngology, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire. 3. The Dartmouth Institute for Health Policy and Clinical Practice, Hanover, New Hampshire. 4. Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, New York.