[1
]
University of Occupational and Environment Health, Kitakyushu (Drs Mori, Tateishi,
Kobayashi, Hiraoka, Kawashita, Kiyomoto, Tahara, Okazaki, Ogami, Suzuki, Mori, Ito);
Hiroshima University, Hiroshima (Dr Kubo); Hitachi Health Care Center, Hitachi Ltd.
(Dr Hayashi); Kumagai Gumi Co., Ltd. (Dr Kobashi); Tokai University, Isehara (Dr Fukai);
Igari Occupational Health Consultation Office (Dr Igari); Tokyo Electric Power Company
Holdings (Dr Kikuchi), Tokyo; National Institute of Occupational Safety and Health
(Dr Yoshikawa); the Ohara Memorial Institute for Science of Labour (Dr Sakai), Kawasaki,
Japan.