（關于慢性疼 R. S., Jacques, L., Eldabe, S., Meglio, M., Molet, J., ... & North, R. B. (2007). Spinal cord stimulation versus conventional medical management for neuropathic pain: a multicentre randomised controlled trial in patients with failed back surgery syndrome. Pain, 132(1-2), 179-188. https://doi.org/10.1016/j.pain.2007.07.028
（關于麻醉治療改善疼痛療效數據，見正文第5部分）