| Christopher G Hughes | Division of Anesthesiology Critical Care Medicine and Center for Health Services Research, Vanderbilt University Medical Center, Nashville Veterans Affairs Medical Center, Tennessee Valley Healthcare System, Vanderbilt Brain Institute, Center for Health Services Research, Division of Pulmonary and Critical Care Medicine and Center for Health Services Research, Education and Clinical Center Service, Vanderbilt University School of Medicine, University of Utah School of Medicine, George E. Wahlen Department of Veterans Affairs Medical Center, Utah PPGeorge E. Wahlen Department of Veterans Affairs Medical Center, University of Washington School of Medicine, Washington Clinical Epidemiology, Julius Center for Health Sciences and Primary Care, University Medical Center |