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1 A study on the C-shaped root canal system of mandibular second molar
Dong-Gyun Lee, Jun-Mo Park, Ho-Keel Hwang
J Korean Acad Conserv Dent.2007;32(4):335-342.   Published online 2007 July 31     DOI: http://dx.doi.org/10.5395/JKACD.2007.32.4.335
      

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