title: Bone loss in untreated disease: A longitudinal study.
mesh_terms: D000328:Adult; D000368:Aged; D000539:Alveolar Process / Q000473:pathology; D001862:Bone Resorption / Q000209:etiology* / Q000473:pathology; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010510:Periodontal Diseases / Q000150:complications*