Predictors of Treatment Success Following Pulsed Radiofrequency of the Lumbar Dorsal Root Ganglion: A Multivariable Prediction Model with Clinical Nomogram - Matteo Luigi Giuseppe Leoni; Marco Mercieri; Sandra Magnoni; Giuliano Lo Bianco; Jamal Hasoon; Omar Viswanath; Giacomo Farì; Giuseppina Chelo; Giustino Varrassi (Current Pain and Headache Reports, 2026)