1. Hospital Zambrano Hellion Tec Salud, San Pedro Garza Garcia Nuevo Leon Mexico
2. Latin American Pain Society New York New York USA
3. Nacional Cancer Institute of Mexico Mexico City Mexico
4. Singular Centro de Controle da Dor Campinas SP Brazil
5. Hospital Universitario Fundacion Santa Fe de Bogota Colombia
6. Centro MDRS, Sports Spine & Pain Center Lima Pain Institute Lima Peru
7. Clinica Angloamericana Lima Lima Peru
8. Madrid Morphological Research Center Madrid Spain
9. Advance Spine on Park Avenue New York New York USA