1. Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Muenster, Muenster, Germany;
2. Department of Biology, Texas A&M University, College Station, TX;
3. Department of Laboratory Medicine, University of California, San Francisco, San Francisco, CA;
4. Gerhard-Domagk-Institute of Pathology University of Muenster, Albert-Schweitzer-Campus 1, Muenster, Germany; and
5. Institute of Hygiene, University Hospital Muenster, Muenster, Germany