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1 A Retrospective study on the survival rate of the sinus perforated implants
Jae-Kwan Lee, Heung-Sik Um, Beom-Seok Chang
J Korean Acad Periodontol.2006;36(4):891-900.   Published online 2006 December 31     DOI: http://dx.doi.org/10.5051/jkape.2006.36.4.891
      

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