A Comparison of 1000 Hz to 30 Hz Spinal Cord Stimulation Strategies in Patients with Unilateral Neuropathic Leg Pain Due to Failed Back Surgery Syndrome: A Multicenter, Randomized, Double-Blinded, Crossover Clinical Study (HALO). - Breel, Jennifer; Wille, Frank; Wensing, Agnes G. C. L.; Kallewaard, Jan Willem; Pelleboer, Harmen; Zuidema, Xander; Bürger, Katja; de Graaf, Stijn; Hollmann, Markus W. (Pain & Therapy, 2021)