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Waterborne campylobacteriosis in northern Norway.
Melby K, Gondrosen B, Gregusson S, Ribe H, Dahl OP. Melby K, et al. Among authors: dahl op. Int J Food Microbiol. 1991 Feb;12(2-3):151-6. doi: 10.1016/0168-1605(91)90064-v. Int J Food Microbiol. 1991. PMID: 2049283
Month of birth as a latitude-dependent risk factor for multiple sclerosis in Norway.
Grytten N, Torkildsen Ø, Aarseth JH, Benjaminsen E, Celius EG, Dahl OP, Holmøy T, Løken-Amsrud K, Midgard R, Myhr KM, Risberg G, Vatne A, Kampman MT. Grytten N, et al. Among authors: dahl op. Mult Scler. 2013 Jul;19(8):1028-34. doi: 10.1177/1352458512471094. Epub 2012 Dec 20. Mult Scler. 2013. PMID: 23257620
[Encephalitis after acute Epstein-Barr virus infection].
Riemer G, Stenvik Ø, Dahl OP, Slungaard S, Ringstad J, Bruu AL. Riemer G, et al. Among authors: dahl op. Tidsskr Nor Laegeforen. 2001 Jun 10;121(15):1798-800. Tidsskr Nor Laegeforen. 2001. PMID: 11464684 Free article. Norwegian.
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