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Yutaka YOSHITAKE
Ehime Prefectural Center for Health Promotion, Matsuyama
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Nobuo ZAIKI
Ehime Prefectural Center for Health Promotion, Matsuyama
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Shoji SHINKAI
Ehime Prefectural Center for Health Promotion, Matsuyama
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Sejij HINO
Department of Hygiene, School of Medicine, Ehime University
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Tsutomu WATANABE
Department of Hygiene, School of Medicine, Ehime University