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Chronic pain has been traditionally defined by pain duration, but this approach has limited empirical support and does not account for chronic pain’s multi-dimensionality. This study compared duration-based and prospective approaches to defining chronic pain in terms of their ability to predict future pain course and outcomes for primary care patients with three common pain conditions: back pain (n=971),...
Migraine is the most common cause of recurrent headache among children and adolescents resulting in missing of school and disabling their daily life. The purpose of this study is to determine the prevalence and clinical features of headache in junior high school children in Japan. In December 2004, questionnaires were sent to 14 junior high schools. There were multiple-choice type questions on headache,...
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