title: Abstracts from Japanese journal of hygiene (Nihon Eiseigaku Zasshi) vol. no.3.
authors: Department of Preventive Medicine and Community Health, University of Occupational and Environmental Health, Kitakyushu.
authors: M
authors: M
authors: Ashinya
authors: M
authors: M
authors: Yutaka
authors: S
authors: S
authors: Manabe
authors: H
authors: H
authors: Matsushita
authors: K
authors: K
authors: Okamoto
authors: K
authors: K
authors: Yagyu
authors: T
authors: T
authors: Koie
authors: K
authors: K
authors: Suzuki
authors: S
authors: S
authors: Kudo
authors: M
authors: M
authors: Yamada
authors: Q
authors: Q
authors: Liu
authors: S
authors: S
authors: Nakaji
authors: K
authors: K
authors: Sugawara
authors: J
authors: J
authors: Fan
authors: K
authors: K
authors: Aoshima
authors: T
authors: T
authors: Katoh
authors: H
authors: H
authors: Teranishi
authors: M
authors: M
authors: Kasuya