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Al-Ahmad A, Maier J, Follo M, Spitzmüller B, Wittmer A, Hellwig E, Hübner J, Jonas D.Al-Ahmad A, et al. Among authors: spitzmuller b.J Endod. 2010 Nov;36(11):1812-9. doi: 10.1016/j.joen.2010.08.011. Epub 2010 Sep 16.J Endod. 2010.PMID: 20951293
Klai S, Altenburger M, Spitzmüller B, Anderson A, Hellwig E, Al-Ahmad A.Klai S, et al. Among authors: spitzmuller b.ScientificWorldJournal. 2014 Mar 23;2014:807086. doi: 10.1155/2014/807086. eCollection 2014.ScientificWorldJournal. 2014.PMID: 24795539Free PMC article.