Showing 1 - 3 results of 3 for search 'Ragnhild E Ørstavik', query time: 0.02s Refine Results
  1. 1
    Advantages of linking national registries with twin registries for epidemiological research

    Advantages of linking national registries with twin registries for epidemiological research by Line C. Gjerde, Fartein Ask Torvik, Kristian Amundsen Østby, Gun Peggy Knudsen, Nikolai Czajkowski, Ted Reichborn-Kjennerud, Ragnhild E. Ørstavik

    Published 2016-07-01
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  2. 2
    Musculoskeletal pain and work absence – a 10 year follow-up study of Norwegian young adult twins

    Musculoskeletal pain and work absence – a 10 year follow-up study of Norwegian young adult twins by Ragnhild E. Ørstavik, Gun Peggy Knudsen, Kristian Tambs, Line C. Gjerde, Fartein Ask Torvik, Christopher Nielsen, Espen Røysamb, Ted Reichborn-Kjennerud

    Published 2016-07-01
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  3. 3
    Does low alcohol use increase the risk of sickness absence? A discordant twin study

    Does low alcohol use increase the risk of sickness absence? A discordant twin study by Kristian Amundsen Østby, Nikolai Czajkowski, Gun Peggy Knudsen, Eivind Ystrøm, Line C. Gjerde, Kenneth S. Kendler, Ragnhild E Ørstavik, Ted Reichborn-Kjennerud

    Published 2016-08-01
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