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Svanholt P, Petri N, Wildschiødtz G, Sonnesen L.Svanholt P, et al. Among authors: petri n.Eur J Orthod. 2015 Aug;37(4):391-7. doi: 10.1093/ejo/cju064. Epub 2014 Oct 28.Eur J Orthod. 2015.PMID: 25351571
Sonnesen L, Petri N, Kjaer I, Svanholt P.Sonnesen L, et al. Among authors: petri n.Eur J Orthod. 2008 Oct;30(5):521-6. doi: 10.1093/ejo/cjn028. Epub 2008 Jul 22.Eur J Orthod. 2008.PMID: 18647950
Petri N, Suadicani P, Wildschiødtz G, Bjørn-Jørgensen J.Petri N, et al.Acta Otolaryngol. 1994 Sep;114(5):565-71. doi: 10.3109/00016489409126106.Acta Otolaryngol. 1994.PMID: 7825443
Norup PW, Petri NE, Jacobsen E.Norup PW, et al. Among authors: petri ne.Ugeskr Laeger. 1993 Nov 1;155(44):3575-6.Ugeskr Laeger. 1993.PMID: 8236582Danish.