title: Association between HL-A2 antigen and various periodontal diseases in young adults.
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D005891:Gingivitis / Q000276:immunology; D005892:Gingivitis, Necrotizing Ulcerative / Q000276:immunology; D006680:HLA Antigens; D006649:Histocompatibility Antigens; D006801:Humans; D010510:Periodontal Diseases / Q000276:immunology*; D010512:Periodontal Index; D010518:Periodontitis / Q000276:immunology
chemical_list: D006680:HLA Antigens; D006649:Histocompatibility Antigens