[1] UKGM Giessen-Marburg,Department of Anaesthesiology and Intensive Care Therapy
[2] Location Marburg,Department of Anaesthesiology, Intensive Care Medicine and Pain Management
[3] University Hospital Saarland,Department of Anaesthesiology, Intensive Care
[4] Orthopaedic University Hospital Friedrichsheim, and Pain Medicine
[5] University Hospital Karl-Gustav Carus,Department of Anaesthesiology and Intensive Care Medicine
[6] Diakonische Dienste Hannover gGmbH,Department for Anaesthesiology, Intensive Care
[7] Waldkrankenhaus “Rudolf Elle” GmbH, and Pain Medicine
[8] HELIOS Klinikum Borna,Department for Anaesthesia and Intensive Care Therapy
[9] Klinikum Worms gGmbH,Department for Anaesthesiology, Intensive Care Medicine, Pain Therapy and Palliative Medicine
[10] Berufsgenossenschaftliche Unfallklinik Frankfurt am Main,Department for Anaesthesia and Intensive Care Medicine
[11] Diakonissenkrankenhaus,Department for Anaesthesiology, Intensive Care Medicine and Pain Therapy
[12] St. Vincentius-Kliniken gAG Karlsruhe,Department for Anaesthesiology and Intensive Care Medicine
[13] County Hospital Neumarkt i. d. OPf.,Department for Anaesthesiology and Surgical Intensive Care Medicine
[14] Philipps University Hospital,Department for Anaesthesiology and Intensive Care Medicine
[15] Philipps University Marburg,Department of Anaesthesiology and Intensive Care Therapy