1. Pain Clinic Hospital Universitario Sanitas La Moraleja Madrid Spain
2. Division of Acute and Perioperative Pain Medicine Department of Anesthesiology University of Florida College of Medicine Gainesville FL USA
3. Lumina Pain Medicine Collaborative Surrey UK
4. CEU San Pablo University School of Medicine Madrid Spain
5. Department of Anesthesiology Madrid‐Montepríncipe University Hospital Madrid Spain