Necrotizing ulcerative gingival lesions and clinical attachment loss.
D000293:Adolescent; D000328:Adult; D002648:Child; D002677:Chile / Q000453:epidemiology; D005260:Female; D005892:Gingivitis, Necrotizing Ulcerative / Q000150:complications* / Q000453:epidemiology / Q000209:etiology; D006801:Humans; D016015:Logistic Models; D008297:Male; D016017:Odds Ratio; D017622:Periodontal Attachment Loss / Q000453:epidemiology / Q000209:etiology*; D012307:Risk Factors