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Prevalence of Porphyromonas gingivalis Four rag Locus Genotypes in Patients of Orthodontic Gingivitis and Periodontitis
- Yi Liu,
- Yujie Zhang,
- Lili Wang,
- Yang Guo,
- Shuiqing Xiao
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- Published: April 4, 2013
- https://doi.org/10.1371/journal.pone.0061028