1. Department of Emergency and Internal Medicine, Henry Ford Hospital, Detroit, MI 48202, USA
2. College of Osteopathic Medicine, Des Moines University, Des Moines, IA 50312, USA
3. Trauma Center, Memorial Hospital, South Bend, IN 46601, USA
4. Section of Trauma and Critical Care, Department of Surgery, Indiana University School of Medicine, Indianapolis, IN 46202, USA
5. Indiana Blood Center, Indianapolis, IN 46227, USA
6. University of Notre Dame, Notre Dame, IN 46556, USA
7. Indiana University School of Medicine, Notre Dame Campus, South Bend, IN 46556, USA