(2012). Periodontal (gum) disease: Causes, symptoms, and treatments. U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Dental and Craniofacial Research.
Chicago Style (17th ed.) CitationPeriodontal (gum) Disease: Causes, Symptoms, and Treatments. Bethesda, Maryland: U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Dental and Craniofacial Research, 2012.
MLA (9th ed.) CitationPeriodontal (gum) Disease: Causes, Symptoms, and Treatments. U.S. Department of Health and Human Services, National Institutes of Health, National Institute of Dental and Craniofacial Research, 2012.
Warning: These citations may not always be 100% accurate.