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1 A study of distribution, prevalence and relationship of the localized periodontitis of first and second molar root fusion
Byung-Kook Choi, Ki-Seok Hong, Chin-Hyung Chung, Sung-Bin Lim
J Korean Acad Periodontol.2006;36(2):503-513.   Published online 2006 June 30     DOI: http://dx.doi.org/10.5051/jkape.2006.36.2.503
      

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