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Correspondence
Authors: Kazunori Narumi(Study director)
Kazushige Hori, Hitoshi Saitou,
Yuko Ishige, Hiromi Saitou,
Akihiko Kajiwara
Kashima Laboratory, Mitsubishi Chemical Safety Institute Ltd.
14 Sunayama, Hasaki-machi, Kashima-gun, Ibaraki, 314-0255 Japan
Tel +81-479-46-2871 Fax +81-479-46-2874