17 August 2022
: Case report 
Treating Intractable Postamputation Pain with Noninvasive, Wearable, Nonthermal, Pulsed Shortwave (Radiofrequency) Therapy: A 12-Patient Case Series
Unusual or unexpected effect of treatment
Brian M. Ilfeld12ABDEF*, Engy T. Said1BDE, Baharin Abdullah1BE, John J. Finneran IV12BDEDOI: 10.12659/AJCR.937549
Am J Case Rep 2022; 23:e937549
Figure 3. Improvement in worst (maximum) phantom pain as measured with the 0 to 10 numeric rating pain scale for the previous 24 h prior to data collection. Each line represents 1 patient. Of the 12 patients in this report, 1 patient did not experience phantom limb pain at baseline, and therefore there are only 11 patients represented in this graph.