1. Department of Pathology University of Pittsburgh Pittsburgh Pennsylvania USA
2. Trauma and Transfusion Medicine Research Center, Department of Surgery University of Pittsburgh Pittsburgh Pennsylvania USA
3. Department of Surgery University of Pittsburgh Pittsburgh Pennsylvania USA
4. Department of Critical Care Medicine University of Pittsburgh Pittsburgh Pennsylvania USA
5. Department of Obstetrics, Gynecology and Reproductive Sciences University of Pittsburgh School of Medicine Pittsburgh Pennsylvania USA
6. Department of Obstetrics and Gynecology Penn State College of Medicine Hershey Pennsylvania USA
7. Department of Pathology Mayo Clinic Rochester Minnesota USA