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Gao X, Di Wu I, Lo EC, Chu CH, Hsu CY, Wong MC.Gao X, et al.J Dent. 2013 Sep;41(9):787-95. doi: 10.1016/j.jdent.2013.06.005. Epub 2013 Jun 19.J Dent. 2013.PMID: 23791698
Zhou Y, Jiang S, Li KY, Lo ECM, Gao X.Zhou Y, et al. Among authors: gao x.Int Dent J. 2018 Apr;68(2):122-128. doi: 10.1111/idj.12335. Epub 2017 Sep 14.Int Dent J. 2018.PMID: 28905361Free PMC article.English.
Tan SHX, Teo YY, Tan MHX, Gao X.Tan SHX, et al. Among authors: gao x.Int Dent J. 2021 Dec;71(6):508-515. doi: 10.1016/j.identj.2021.01.008. Epub 2021 Mar 17.Int Dent J. 2021.PMID: 33743991Free PMC article.