1. * Associate Professor of Anesthesiology, † Assistant Professor of Anesthesiology, ‡ Associate Professor of Orthopaedic Surgery, Associate Professor and Director of Center for Pharmacoinformatics and Outcomes Research, # Safar Professor and Chair of Anesthesiology, ** Associate Professor of Medicine, †† Professor of Anesthesiology and Orthopaedic Surgery, ‡‡ Professor of Orthopaedic Surgery, Unive