About Kusaka, Y.
About Department of Hygiene, Medical School, Osaka University, Osaka City 530
About Yokoyama, K.
About Department of Hygiene, Medical School, Osaka University, Osaka City 530
About Sera, Y.
About Department of Hygiene, Medical School, Osaka University, Osaka City 530
About Yamamoto, S.
About Sone, S.
About Kyono, H.
About Shirakawa, T.
About Goto, S.
About British Journal of Industrial Medicine