1. Mitchell SW, Morehouse GR, Keen WW: Gunshot Wounds, and Other Injuries of Nerves. Philadelphia, JB Lippincott Co, 1864, p 164
2. Bonica JJ (ed): The Management of Pain, ed 2. Philadelphia, Lea & Febiger, 1990, pp 220–243
3. The reflex sympathetic dystrophy syndrome (RSDS)