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1. Becker J, John G, Becker K, Mainusch S, Diedrichs G, Schwarz F. – Clinical performance of two-piece zirconia implants in the posterior mandible and maxilla: a prospective cohort study over 2 years. Clin. Oral Impl. Res. 28, 2017, 29-35 doi: 10.1111/clr 12610

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