1. Ethnicity in the reported pain, emotional distress, and requests of medical outpatients;Koopman;Soc Sci Med,1984
2. Sex difference in pain tolerance and appreciation;Notermans,1975
3. Pain tolerance differences according to age, sex, and race;Woodrow,1975
4. Age differences in pain perception and report: a review of physiological, psychological, laboratory, and clinical studies;Gibson;Pain Reviews,1995
5. Geriatric pain;Harkins,1994