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IP address: 44.200.179.138
Time: 2024-03-28T21:54:05Z
URL: http://scholar.google.com/scholar_lookup?title=Periodontal+disease+in+pregnancy.+Ii.+Correlation+between+oral+hygiene+and+periodontal+condtion&year=1964&author=Silness&journal=Acta+Odontol+Scand&volume=22&pages=121-135&doi=10.3109%2F00016356408993968&pmid=14158464