Epidemiology, etiology, and prevention of periodontal diseases :

Epidemiology, etiology, and prevention of periodontal diseases : report of a WHO scientific group [meeting held in Moscow from 23 November to 2 December 1977] - Geneva : World Health Organization, 1978. - 60 p. - World Health Organization technical report series ; no. 621 .

jap published by: Tokyo : Oral Health Association of Japan. Russian version of nos. 613-636 bound together (barcode no. 00073787).


eng fre rus spa.
jpn.

9241206217


Periodontal diseases.

WU 240
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