1. Examination of the patient;Bonica,1953
2. Intractable pain in patients with advanced head and neck tumors: a possible role of local infection;Bruera;Cancer Treat. Rep.,1986
3. Introduction to acute and chronic pain: implications for neural blockade;Cousins,1988
4. Treating cancer pain as a disease;Ferrer-Brechner,1984
5. Pain syndromes in patients with cancer;Foley,1979