1. Outcomes Group, VA Medical Center, White River Junction, Vermont2Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire3Pulmonary and Critical Care Medicine, Veterans Affairs, White River Junction, Vermont
2. Outcomes Group, VA Medical Center, White River Junction, Vermont2Medicine, Geisel School of Medicine at Dartmouth, Hanover, New Hampshire4The Dartmouth Institute for Health Policy and Clinical Practice, Hanover, New Hampshire