Core patient-reported outcome measures for chronic pain patients treated with spinal cord stimulation or dorsal root ganglia stimulation oleh Frank Huygen, Jonathan M. Hagedorn, Steven Falowski, David Schultz, Jan Vesper, Robert D. Heros, Denis G. Patterson, Soroush Dehghan, Erika Ross, Anahita Kyani, Misagh B. Mansouri, Jan Willem Kallewaard