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Takei, H. H.; Han, T. J.; Carranza, F. A.; Kenney, E. B.; Lekovic, V. . (1985).
Flap Technique for Periodontal Bone Implants: Papilla Preservation Technique. Journal of Periodontology, 56(4), 204–210.
doi:10.1902/jop.1985.56.4.204
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