| Affiliation: | 2. Department of Anesthesiology, Guangdong Cardiovascular Institute, Guangdong Provincial People''s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China;2. Critical Care Medicine Division, Department of Anesthesiology and Critical Care, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA;2. Tufts Clinical and Translational Science Institute, Tufts University, Boston, MA;3. Institute of Clinical Research and Health Policy Studies, Tufts Medical Center, Boston, MA;4. Tufts University School of Medicine, Boston, MA;5. Department of Anesthesia, Critical Care and Pain Medicine, Boston Veterans Affairs Health Care System, West Roxbury, MA;2. Outcomes Research Consortium, Cleveland, OH |
