Hormonal contraceptive use in Norway, 2006-2020, by contraceptive type, age and county: A nationwide register-based study by Kari Furu, Ellen Barth Aares, Vidar Hjellvik, Øystein Karlstad

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The epidemiology of major depression among adults in Norway: an observational study on the concurrence between population surveys and registry data - a NCDNOR project by Jørgen G. Bramness, Vidar Hjellvik, Anne Høye, Martin Tesli, Marit Haram, Wenche Nystad, Steinar Krokstad

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Bruk av andre vanedannende legemidler blant opioidbrukere med langvarige smerter by Ingvild Odsbu, Marte Handal, Vidar Hjellvik, Petter C. Borchgrevink, Thomas Clausen, Aleksi Hamina, Torgeir Gilje Lid, Ragnar Nesvåg, Svetlana Skurtveit

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Use of Drugs With Risk of Heart Rate-Related Problems is Common in Norwegian Dementia Patients Treated With Acetylcholinesterase Inhibitors: A Prevalence Study Based on the Norwegi... by Anne Sverdrup Efjestad, Hege Ihle-Hansen, Hege Ihle-Hansen, Vidar Hjellvik, Knut Engedal, Knut Engedal, Hege Salvesen Blix, Hege Salvesen Blix

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A common data model for harmonization in the Nordic Pregnancy Drug Safety Studies (NorPreSS) by Jacqueline M. Cohen, Carolyn E. Cesta, Lars Kjerpeseth, Maarit K. Leinonen, Óskar Hálfdánarson, Øystein Karlstad, Pär Karlsson, Morten Andersen, Kari Furu, Vidar Hjellvik

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Prenatal opioid exposure and risk of asthma in childhood: a population-based study from Denmark, Norway, and Sweden by Ingvild Odsbu, Ingvild Odsbu, Marte Handal, Marte Handal, Vidar Hjellvik, Sonia Hernandez-Diaz, Helle Kieler, Helle Kieler, Mette Nørgaard, Svetlana Skurtveit, Svetlana Skurtveit, Buket Öztürk Esen, Milada Mahic

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