Additional file 2. Site Ethics/IRB approvals (as of 3rd July 2013)

Site name Principal Ethics committees (EC)/Institutional Review Board (IRB) name EC/IRB Street Address Investigator name Centre Hospitalier Régional Remacle Jean Comité d’éthique - CHR La Citadelle Boulevard du 12e Ligne 1 de la Citadelle Michel H.A. GZA - Sint Augustinus Van Havenbergh Ethische commissie GZA - Sint Augustinus ziekenhuis Oosterveldlaan 24 ziekenhuis Tony H-Hartziekenhuis Deruytter Marc Medisch-Ethische Commissie - Heilige Hart Ziekenhuis Wilgenstraat 2, Pijn klinik, Westlaan Roeselare-Menen vzw Roeselare-Menen 123 Cliniques Universitaires Raftopoulos Comité d'éthique - Cliniques Universitaires Saint-Luc Avenue Hippocrate 55.14, Comission Saint-Luc Christian d'éthique Biomédicale Hopitalo- Facultaire, Tour Harvey Algemeen Ziekenhuis Sint Vangeneugden Ethisch Commissie - Emmaüs vzw Edgard Tinellaan 1c Maarten - Campus johan Rooienberg Centre Hospitalier Rigoard Phillippe Comité de Protection des Personnes "Ouest III" - CHU de 2 rue de la Milétrie, Pavillon Le Blaye - Universitaire de Poitiers - Poitiers Porte 9 Hôpital de la Milétrie Städtisches Klinikum Görlitz Eif Marcus Sächsische Landesärztekammer Schützenhöhe 16 gGmbH Sint-Elisabeth Ziekenhuis Van Eijs Medisch Ethische Toetsingscommissie - Sint-Elisabeth Hilvarenbeekseweg 60, Postbus Franciscus Ziekenhuis 90151 Hospital Clínico Noriega David Comité Ético de Investigación Clínica - Hospital Clínico Avda. Ramón y Cajal, 7, Farmacología Universitario de Valladolid Universitario de Valladolid 6º Planta, Facultad de Medicina Hospital Clinico Garcia March Comité Ético de Investigación Clínica - Hospital Clínico Avda. Blasco Ibañez 17, Pabellón B- Universitario de Valencia Guillermo Universitario de Valencia primer piso Oxford University Hospitals Bojanic Stana NRES Committee Yorkshire and The Humber - Sheffield First Floor, Millside, Mill Pond Lane, NHS Trust - John Radcliffe Meanwood Hospital Queens Medical Centre Basu Surajit NRES Committee Yorkshire and The Humber - Sheffield First Floor, Millside, Mill Pond Lane, Meanwood National Pain Institute Sajan Cherian Florida Hospital IRB 212 E Winter Park St Richmond Bone and Joint Burnette Candice WIRB (Western Institutional Review Board) 3535 7th Ave SW Clinic New York Spine and Calkins Anne Saint Joseph's Hospital Health Center Research Committee IRB 301 Prospect Ave Wellness Center Pain Care LLC Galan Vincent WIRB (Western Institutional Review Board) PO BOX 12029 West Virginia University Kim Chong West Virginia University Office of Research Compliance 886 Chestnut Ridge Rd, PO Box 6845 Pain Management Center Wellspan Interventional Vu To-Nhu WellSpan Health IRB 1001 S George St Pain Management Kozmary Center for Pain Kozmary Steven WIRB (Western Institutional Review Board) 3535 7th Ave SW Management Ocean Springs Edmiston Bart WIRB (Western Institutional Review Board) 3535 7th Ave SW Neuroscience Center