title: A clinical evaluation of calcium therapy for periodontal disease.
mesh_terms: D000293:Adolescent; D000328:Adult; D002136:Calcium, Dietary / Q000627:therapeutic use*; D002986:Clinical Trials as Topic; D005892:Gingivitis, Necrotizing Ulcerative / Q000188:drug therapy; D006801:Humans; D008875:Middle Aged; D010510:Periodontal Diseases / Q000188:drug therapy*; D014807:Vitamin D / Q000627:therapeutic use
chemical_list: D002136:Calcium, Dietary; D014807:Vitamin D