[1] University of Aberdeen,School of Medicine, Medical Sciences and Nutrition
[2] Martini General Hospital Groningen,Department of Anesthesiology Pain Medicine and Procedural Sedation and Analgesia
[3] Universitair Ziekenhuis Brussel,Anesthesiology and Perioperative Medicine
[4] Vrije Universiteit Brussel,Department of Anesthesiology and Perioperative Medicine, Division of Anesthesiology, Critical Care, and Pain Medicine
[5] University of Texas MD Anderson Cancer Center,University Department of Anaesthesiology and Pain Medicine
[6] Inselspital,Department of Anesthesia, Department of Neurology and Instituut Born
[7] University Hospital Bern,Bunge
[8] University of Antwerp (UA),Department of Surgical Sciences and Integrated Diagnostics (DISC)
[9] Centre Hospitalier Universitaire de Liège,Centre Des Brûlés
[10] Anesthesiology,Department of Anaesthesia, Institute of Applied Health Sciences, Epidemiology Group, School of Medicine, Medical Sciences and Nutrition
[11] IRCCS San Martino Policlinico Hospital,Pain and Opioids After Surgery (PANDOS) European Society of Anaesthesiology and Intensive Care (ESAIC) Research Group
[12] Centre Hospitalier Universitaire de Liège,Department of Anaesthesia
[13] University of Aberdeen; NHS Grampian,undefined
[14] ESAIC,undefined
[15] NHS Grampian,undefined