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Kouji YAMAMOTO
Kurume Institute of Technology, Facul. of Eng. Dept. of Envir. Symbio. Eng.
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Shunji HIROKAWA
Kyushu University, Graduate School of Eng., Dept of Intel. Mach. & Sys.
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Takashi KAWADA
Kurume University, School of Med., Dept. of Orthop. Surg.