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Studies of sleep and seasonal variations in patients with chronic musculoskeletal pain
(Doctoral thesis; Doktorgradsavhandling, 2021-04-19)
<p><i>Background/aims:</i> Chronic pain is a major health problem, and contributing factors include poor sleep and mental distress. In the subarctic city of Tromsø, clinical impression also suggests worse pain in winter. We aimed to examine whether sleep in patients with chronic musculoskeletal pain differs from pain-free controls, and how psychological processes are related to sleep in these groups. ...