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Stevens A, Søgaard-Andersen L.Stevens A, et al.Trends Microbiol. 2005 Jun;13(6):249-52. doi: 10.1016/j.tim.2005.04.002.Trends Microbiol. 2005.PMID: 15936654Review.
Rolbetzki A, Ammon M, Jakovljevic V, Konovalova A, Søgaard-Andersen L.Rolbetzki A, et al.Dev Cell. 2008 Oct;15(4):627-34. doi: 10.1016/j.devcel.2008.08.002.Dev Cell. 2008.PMID: 18854146Free article.