[Prevalence of periodontal disease in an industrial corporation of Hiroshima region].
Hirakawa
M
M
Shirakawa
M
M
Shinbori
H
H
Tanikawa
M
M
Imamura
N
N
Akimoto
Y
Y
Iida
K
K
Nakanishi
K
K
Ogawa
T
T
Higashi
T
T
D006801:Humans; D007564:Japan / Q000453:epidemiology; D010510:Periodontal Diseases / Q000453:epidemiology*; D010512:Periodontal Index