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The Journal of Headache and Pain|June 15, 2019
The HUNT4 study: the validity of questionnaire-based diagnosesKnut Hagen, Anders Nikolai Åsberg, Benjamin L Uhlig, et al.The Journal of Headache and Pain|March 21, 2018
The epidemiology of headache disorders: a face-to-face interview of participants in HUNT4Knut Hagen, Anders Nikolai Åsberg, Benjamin L Uhlig, et al.Pageof 1