Differences in calculated percentage improvement versus patient-reported percentage improvement in pain scores: a review of spinal cord stimulation trials
Jonathan M Hagedorn, Timothy R Deer, Nicholas C Canzanello, Stephen M Covington, Darrell R Schroeder, Markus A Bendel, Susan M Moeschler, W Michael Hooten
Regional Anesthesia & Pain Medicine Apr 2021, 46 (4) 293-297; DOI: 10.1136/rapm-2020-102238