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The natural history of periodontal disease in man : Changes in gingival health andoral hygiene before 40 years of age
ÅGe ÅNerud, Harald Löe, Hans Boysen, Martyn SmithVolume:
14
Year:
1979
Language:
english
Pages:
15
DOI:
10.1111/j.1600-0765.1979.tb00255.x
File:
PDF, 1.22 MB
english, 1979