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Kim DH, Kim RH, Lee J, Chee YD, Kwon KH.Kim DH, et al. Among authors: kwon kh.J Korean Assoc Oral Maxillofac Surg. 2014 Jun;40(3):103-10. doi: 10.5125/jkaoms.2014.40.3.103. Epub 2014 Jun 27.J Korean Assoc Oral Maxillofac Surg. 2014.PMID: 25045636Free PMC article.