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Zafiropoulos GG, Deli G, Hoffmann O, John G.Zafiropoulos GG, et al. Among authors: deli g.J Indian Soc Periodontol. 2016 Jul-Aug;20(4):441-445. doi: 10.4103/0972-124X.181245.J Indian Soc Periodontol. 2016.PMID: 28298828Free PMC article.
Crea A, Dassatti L, Hoffmann O, Zafiropoulos GG, Deli G.Crea A, et al. Among authors: deli g.J Periodontol. 2008 Dec;79(12):2281-9. doi: 10.1902/jop.2008.080135.J Periodontol. 2008.PMID: 19053918Clinical Trial.
Hoffmann O, Bartee BK, Beaumont C, Kasaj A, Deli G, Zafiropoulos GG.Hoffmann O, et al. Among authors: deli g.J Periodontol. 2008 Aug;79(8):1355-69. doi: 10.1902/jop.2008.070502.J Periodontol. 2008.PMID: 18672984
Zafiropoulos GG, Hoffmann O, Kasaj A, Willershausen B, Deli G, Tatakis DN.Zafiropoulos GG, et al. Among authors: deli g.J Oral Implantol. 2009;35(2):52-62. doi: 10.1563/1548-1336-35.2.52.J Oral Implantol. 2009.PMID: 19400059Clinical Trial.
Zafiropoulos GG, di Prisco MO, Deli G, Hoffmann O, Kasaj A.Zafiropoulos GG, et al. Among authors: deli g.J Int Acad Periodontol. 2010 Oct;12(4):112-22.J Int Acad Periodontol. 2010.PMID: 21128529