title: Genetic signature reveals new way to classify periodontal disease.
mesh_terms: D010520:Aggressive Periodontitis / Q000145:classification / Q000235:genetics*; D055113:Chronic Periodontitis / Q000145:classification / Q000235:genetics*; D015870:Gene Expression / Q000235:genetics; D020869:Gene Expression Profiling; D005881:Gingiva / Q000378:metabolism*; D006801:Humans