| Affiliation: | 1. San Giovanni‐Addolorata Hospital, Rome, Italy;2. Department of Neurosurgery, Macchi Foundation Hospital, Varese, Italy;3. Pain Therapy Unit, Azienda Ospedaliera Universitaria Pisana, Pisa, Italy;4. Pain Therapy Unit, Maria Adelaide Hospital, Torino, Italy;5. Second University of Napoli CTO Hospital AORN dei Colli, Naples, Italy;6. A.A.S. N. 5 ‐ San Vito, San Vito al Tagliamento, Italy;7. Pain Unit, AO dei Colli‐V. Monaldi, Naples, Italy;8. Pain Therapy Unit, Rovereto Hospital, Trento, Italy;9. Pain Therapy Department, Oglio‐Po Hospital, Casalmaggiore, Italy |
