1. Miller RD, Cohen NH, Eriksson LI, Fleisher LA, Wiener-Kronish JP, Young WL. Miller’s Anesthesia. In: BOX 64-2: preoperative considerations and recommendations in patients with chronic pain. 8th ed. Philadelphia: Elsevier; 2016. p. 1915.
2. Farrell C, McConaghy P. Perioperative management of patients taking treatment for chronic pain. BMJ. 2012;345:e4148.
3. Kopf A, Banzhaf A, Stein C. Perioperative management of the chronic pain patient. Best Pract Res Clin Anaesthesiol. 2005;19:59–76.
4. Miller RD, Cohen NH, Eriksson LI, Fleisher LA, Wiener-Kronish JP, Young WL. Miller’s Anesthesia. In: BOX 64-3: intraoperative and postoperative management issues and practical recommendations in patients with chronic pain. 8th ed. Philadelphia: Elsevier; 2016. p. 1916.
5. Mergeay M, Verster A, Aken DV, Vercauteren M. Regional versus general anesthesia for spine surgery; a comprehensive review. Acta Anaesthesiol Belg. 2015;66:1–9.