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Cieplik, Fabian; Ihlenfeld, Insa; Hiller, Karl-Anton; Pummer, Andreas; Schmalz, Gottfried; Buchalla, Wolfgang; Christgau, Michael (2020). Tooth survival and clinical outcomes up to 26 years after guided tissue regeneration therapy in deep intra-bony defects: Follow-up investigation of three randomized clinical trials. Journal of clinical periodontology, 47(7), pp. 863-874. Wiley 10.1111/jcpe.13302
