Pain and illness behaviour: a comparative study.
D000367:Age Factors; D001294:Attitude to Health; D003674:Defense Mechanisms; D004644:Emotions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010148:Intractable Pain / Q000209:etiology*; D010817:Physician-Patient Relations; D012803:Sick Role; D011795:Surveys and Questionnaires