1. Department of SurgeryUniversity of Michigan HospitalAnn Arbor Michigan
2. Department of Neurological SurgeryCase Western Reserve UniversityCleveland Ohio
3. Department of Anesthesiology, Institute for Cardiovascular ResearchVU University Medical CenterAmsterdam the Netherlands
4. Department of Surgical GastroenterologyCopenhagen University HospitalRigshospitalet Copenhagen Denmark
5. Institute for Inflammation ResearchCopenhagen University HospitalRigshospitalet Copenhagen Denmark