1. Departments of Surgery, Vrije Universiteit Medical Center, Amsterdam 1081 HV, The Netherlands
2. Departments of Pathology, Vrije Universiteit Medical Center, Amsterdam 1081 HV, The Netherlands
3. Departments of Internal Medicine, Vrije Universiteit Medical Center, Amsterdam 1081 HV, The Netherlands
4. Department of Surgical Intensive Care Unit, University of Pittsburgh Medical Center, Pittsburgh, PA 15213