title: Abustracts from Japanese journal of hygiene (Nihon Eiseigaku Zasshi) vol.55 no.2.
authors: Department of Hygiene and Preventive Medicine, Okayama University Medical School, Okayama.
authors: T
authors: T
authors: Tsuda
authors: A
authors: A
authors: Babazono
authors: Y
authors: Y
authors: Mino
authors: E
authors: E
authors: Yamamoto
authors: M
authors: M
authors: Miyai
authors: J
authors: J
authors: Shigemi
authors: A
authors: A
authors: Ueki
authors: K
authors: K
authors: Suzuki
authors: Y
authors: Y
authors: Ito
authors: M
authors: M
authors: Otani
authors: S
authors: S
authors: Suzuki
authors: K
authors: K
authors: Aoki
authors: S
authors: S
authors: Ooki
authors: M
authors: M
authors: Tanaka
authors: H
authors: H
authors: Takahashi
authors: K
authors: K
authors: Nakamura
authors: S
authors: S
authors: Takahashi
authors: M
authors: M
authors: Imaki
authors: Y
authors: Y
authors: Yoshida
authors: Y
authors: Y
authors: Ogawa
authors: S
authors: S
authors: Tanada
authors: N
authors: N
authors: Shono
authors: Y
authors: Y
authors: Kondo
authors: Y
authors: Y
authors: Higaki
authors: M
authors: M
authors: Nishizumi