1. Department of Anesthesiology, Yale School of Medicine, New Haven, Connecticut
2. Yale Center for Analytical Sciences, New Haven, Connecticut
3. Department of Medicine, Yale School of Medicine, New Haven, Connecticut
4. Department of Pharmacy, Yale New Haven Hospital, New Haven, Connecticut
5. Department of Surgery, Yale School of Medicine, New Haven, Connecticut
6. Department of Anesthesiology, University of Michigan School of Medicine, Ann Arbor