1. The korean pain society. Pain Medicine 2007;3rd ed. Seoul: Koonja Publishing. 425-442.
2. Parris WCV, Eriator I. In: Smith HS, editor. Cancer pain management. Current theapy in pain 2009;Philadelphia: Saunders Elsevier. 97-106.
3. Kim MJ, Park JA, Shin SJ. Pain and pain management in hospitalized cancer patients. J Korean Acad Fundam Nurs 2008;15:161-170.
4. Heo DS. Pharmacologic management of cancer pain. J Korean Med Assoc 2004;47:268-276.
5. Baik SW, Byeun BM, Chae MG. The clinical evaluation in cancer pain management. Korean J Pain 1998;11:214-219.