1. Joint Commission on Accreditation of Healthcare Organizations. Comprehensive Accreditation Manual for Ambulatory Care. Oakbrook Terrace, IL: Joint Commission on Accreditation of Healthcare Organizations; 2006.
2. National Pharmaceutical Council and Joint Commission on Accreditation of Healthcare Organizations. Pain: Current Understanding of Assessment, Management, and Treatments. Reston, VA: National Pharmaceutical Council and Joint Commission on Accreditation of Healthcare Organizations; 2001.
3. Gureje O, Simon GE, Von Korff M. A cross-national study of the course of persistent pain in primary care. Pain. 2001;92:195–200.
4. Kroenke K, Jackson JL. Outcome in general medical patients presenting with common symptoms: a prospective study with a 2-week and a 3-month follow-up. Fam Pract. 1998;15:398–403.
5. Fox JD, Gordon DB. Joint Commission pain standards: a progress report. APS Bulletin. 2002;12.