1. Division of Trauma, Emergency General Surgery, and Critical Care, Department of Surgery, University of Nebraska, Omaha, Nebraska.
2. Department of Pharmacy, University of Arizona, Tucson, Arizona.
3. Division of Acute Care Surgery, Department of Surgery, University of Arizona, Tucson, Arizona.
4. Division of Surgical Critical Care, University of Maryland Medical Center, Baltimore, Maryland.
5. Division of Acute Care Surgery, Department of Surgery, University of Michigan, Ann Arbor, Michigan.