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Periodontal disease in pregnancy. I. Prevalence and severity
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Löe H, Silness J. Periodontal disease in pregnancy. I. Prevalence and severity. Acta Odontol Scand 1963; 21: 533-551.
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(1963)
Acta Odontol Scand
, vol.21
, pp. 533-551
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Löe, H.1
Silness, J.2
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