1. Caputo GM, and Gross RJ. Function of a general internal medicine consultation service. Kammer and Gross’ Medical Consultation, Gross RJ, and Caputo GM. Baltimore: Williams & Wilkins; 1998 p. 9-18.
2. Son SO. The approaches to postoperative pain management. J Korean Pain Soc 1995;8:1-7.
3. Position paper of the European Federation of IASP Chapters (EFIC) on the subject of pain management
4. Seo CM, Mun CW, Baek UY, and Hong JG. A survey of patients visiting pain clinic. J Korean Pain Soc 2000;13:224-31.
5. Comorbidities in Chronic Neuropathic Pain