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3. [Chronic pain--a chronic headache for health services?]. Hintringer F Tidsskr Nor Laegeforen; 1990 Nov; 110(28):3653-4. PubMed ID: 2260073 [TBL] [Abstract][Full Text] [Related]
4. Guidelines for the assessment and management of chronic pain. Wisconsin Medical Society Task Force on Pain Management WMJ; 2004; 103(3):13-42. PubMed ID: 15217111 [No Abstract] [Full Text] [Related]