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Magelssen M, Supphellen M, Nortvedt P, Materstvedt LJ.Magelssen M, et al. Among authors: materstvedt lj.BMC Med Ethics. 2016 Apr 27;17(1):24. doi: 10.1186/s12910-016-0107-3.BMC Med Ethics. 2016.PMID: 27121374Free PMC article.