1. Morphological Madrid Research Center (MoMaRC) Ultradissection Spain EchoTraining School Madrid Spain
2. Anesthesiology Clinical Research Office Ataturk University Erzurum Turkey
3. Outcomes Research Consortium Cleveland Ohio USA
4. Centro MDRS – Sports, Spine & Pain Center: Lima Pain Institute Lima Peru
5. Clínica Angloamericana British American Hospital Lima Peru
6. Latin American Pain Society (LAPS) New York New York USA
7. Department of Anesthesia Hospital Universitario 12 de Octubre Madrid Spain
8. Department of Anesthesia and Pain Medicine, Hospital de Trauma Centro Integral de Salud de Puriscal San José Costa Rica
9. Department of Anesthesiology, Critical Care and Pain Medicine Móstoles University Hospital Móstoles Spain
10. Aragon Institute for Health Research Zaragoza Spain
11. Department of Anesthesia and Pain Management Centro Nacional de Rehabilitacion, Hospital de Trauma San José Costa Rica
12. Department of Anesthesiology, Critical Care and Pain Medicine Centro Nacional de Rehabilitacion San José Costa Rica
13. Department of Pain Medicine National Cancer Institute Mexico City Mexico
14. Fisiotech Lab Studio, Rheumatology and Pain Management Firenze Italy
15. Center for Regional Anesthesia and Pain Medicine (CRAPM) Wan Fang Hospital, Taipei Medical University Taipei Taiwan
16. Anesthesiology Department University of Wisconsin Madison Wisconsin USA