1. Opioids in the management of chronic non-cancer pain;Trescot;An update of American Society of the Interventional Pain Physicians' (ASIPP) guidelines,2008
2. A crisis in chronic pain care;Giordano;an ethical analysis. Part three: toward an integrative, multi-disciplinary pain medicine built around the needs of the patient,2008
3. Somatic symptoms in patients with chronic non-cancer-related and cancer-related pain;Novy;J Pain Symptom Manage,2005
4. Symptom evaluation in palliative medicine;Homsi;patient report vs systematic assessment,2006
5. Symptom clustering in advanced cancer;Walsh;Support Care Cancer,2006