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Oettinger-Barak O, Barak S, Ohel G, Oettinger M, Kreutzer H, Peled M, Machtei EE.Oettinger-Barak O, et al. Among authors: machtei ee.J Periodontol. 2005 Jan;76(1):134-7. doi: 10.1902/jop.2005.76.1.134.J Periodontol. 2005.PMID: 15830648