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Community Dentistry and Oral Epidemiology > 44 > 4 > 390 - 399
Journal of Clinical Periodontology > 41 > 3 > 215 - 223
Community Dentistry and Oral Epidemiology > 44 > 4 > 390 - 399
Journal of Clinical Periodontology > 41 > 3 > 215 - 223