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M. KATO
Dept.of Earth and Planetary Material Sci.
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M.C. YOSHIDA
Chromosome Res. Unit,Grad.Sch.of Environ.Earth Sci.,Hokkaido Univ.
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R. MASUDA
Chromosome Res. Unit,Grad.Sch.of Environ.Earth Sci.,Hokkaido Univ.
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M. NORO
Dept.of Earth and Planetary Material Sci.