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Periodontal Disease: Prevalence and Incidence*
Marshall-Day, C. D., Stephens, Russell G., Quigley, Lawrence F.Volume:
26
Language:
english
Journal:
Journal of Periodontology
DOI:
10.1902/jop.1955.26.3.185
Date:
July, 1955
File:
PDF, 2.03 MB
english, 1955