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Yu Naito
Grad. School Sci. and Tech., Kumamoto Univ.
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Masayuki Tanabe
Grad. School Sci. and Tech., Kumamoto Univ.
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Hiroshi Hashimoto
GE Healthcare Japan, Ultrason. Eng.
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Tadashi Shimazaki
GE Healthcare Japan, Ultrason. Eng.
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Takao Jibiki
GE Healthcare Japan, Ultrason. Eng.
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Masahiko Nishimoto
Grad. School Sci. and Tech., Kumamoto Univ.