Institution: | (1) Department of Anesthesiology, University of Rochester School of Medicine and Dentistry, Rochester, New York, USA;(2) Department of Medicine, State University of New York at Buffalo, Buffalo, New York, USA;(3) Department of Surgery, University of Vermont Medical College, Burlington, Vermont, USA;(4) Department of Medicine, University of California, Center for Health Policy Research, Irvine, California, USA;(5) RAND Corporation, Pittsburgh, Pennsylvania, USA |