1. Department of Anesthesiology & Intensive Care; Friedrich-Schiller University Hospital; Jena Germany
2. Pain Research Center; Department of Anesthesiology; University of Utah; Salt Lake City USA
3. Department of Anesthesiology & Intensive Care; University Hospital Örebro; Sweden
4. Department of Anesthesiology & Intensive Care; Sourasky Medical Center; Tel-Aviv Israel
5. Department of Anesthesiology & Intensive Care; Raymond Poincaré Hospital; Garches France
6. Plastic and Reconstructive Surgery; Cluj University Hospital; Romania
7. Department of Anesthesiology & Intensive Care; University of Washington Harborview Medical Center; Seattle USA
8. Department of Anesthesiology & Intensive Care; Kantonsspital; Lucerne Switzerland
9. Department of Anesthesiology & Intensive Care; Santa Maria Degli Angeli; University of Trieste and Udine; Italy
10. Department of Anesthesiology & Intensive Care; University Hospital Muenster; Germany
11. Department of Anesthesiology & Intensive Care; IMIM-Hospital del Mar-Universitat Autònoma de Barcelona; Spain
12. Department of Anesthesiology & Intensive Care; Queen Mary and Westfield College; University of London; UK
13. Department of Anesthesiology & Intensive Care; Saarland University Hospital; Homburg Germany