Ellertsen, B Personality factors in recurring and chronic pain. [electronic resource] - Cephalalgia : an international journal of headache Jun 1992 - 129-32 p. digital Publication Type: Journal Article; Review ISSN: 0333-1024 Standard No.: 10.1046/j.1468-2982.1992.1203129.x doi Subjects--Topical Terms: Headache--physiopathologyHumansMMPIPersonalityRecurrence