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1 A study on the smile of Korean Youth compared with twenty years ago
Seung-Gyun Beom, Ji-Hye Jung, Tae-Young Kim, Kyung-Eun Lee, Jin-Keun Dong
J Korean Acad Prosthodont.2012;50(3):162-168.   Published online 2012 July 31     DOI: http://dx.doi.org/10.4047/jkap.2012.50.3.162
      

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