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Aalen OO, Røysland K, Gran JM, Ledergerber B.Aalen OO, et al. Among authors: roysland k.J R Stat Soc Ser A Stat Soc. 2012 Oct;175(4):831-861. doi: 10.1111/j.1467-985X.2011.01030.x.J R Stat Soc Ser A Stat Soc. 2012.PMID: 23193356Free PMC article.
Sánchez-Niubò A, Aalen OO, Domingo-Salvany A, Amundsen EJ, Fortiana J, Røysland K.Sánchez-Niubò A, et al. Among authors: roysland k.BMC Med Res Methodol. 2013 Jan 14;13:4. doi: 10.1186/1471-2288-13-4.BMC Med Res Methodol. 2013.PMID: 23317002Free PMC article.
Aalen OO, Røysland K, Gran JM, Kouyos R, Lange T.Aalen OO, et al. Among authors: roysland k.Stat Methods Med Res. 2016 Oct;25(5):2294-2314. doi: 10.1177/0962280213520436. Epub 2014 Jan 23.Stat Methods Med Res. 2016.PMID: 24463886Free PMC article.