86 papers found
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The Natural History of Periodontal Disease in Man: Prevalence, Severity, and Extent of Gingival Recession*
The natural history of periodontal disease in man.: Changes in gingival health andoral hygiene before 40 years of age
The natural history of periodontal disease in man: the rate of periodontal destruction before 40 years of age
The natural history of periodontal disease in man.: Study design and baseline data
The natural history of periodontal disease in man.: Tooth mortality rates before 40 years of age
Quantitative Untersuchungen am Hyperbenthos der Kieler Bucht
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