The validity of questionnaire-based diagnoses: the third Nord-Trøndelag Health Study 2006–2008

por Hagen, Knut, Zwart, John-Anker, Aamodt, Anne Hege, Nilsen, Kristian Bernhard, Bråthen, Geir, Helde, Grethe, Stjern, Marit, Tronvik, Erling A., Stovner, Lars Jacob
Publicado 2009

A face-to-face interview of participants in HUNT 3: the impact of the screening question on headache prevalence

por Hagen, Knut, Zwart, John-Anker, Aamodt, Anne Hege, Nilsen, Kristian Berhard, Bråthen, Geir, Helde, Grethe, Stjern, Marit, Tronvik, Erling A., Stovner, Lars Jacob
Publicado 2008

Surgery for degenerative cervical myelopathy in patients with rheumatoid arthritis and ankylosing spondylitis: a nationwide registry-based study with patient-reported outcomes

por Holmberg, Siril T., Gulati, Agnete M., Johansen, Tonje Okkenhaug, Salvesen, Øyvind O., Lønne, Vetle Vangen, Solberg, Tore K., Tronvik, Erling A., Nygaard, Øystein P., Gulati, Sasha
Publicado 2022