%!PS-Adobe-2.0
%%Creator: Masahiko Yokoyama
%%Title: Combined figures -- 4 figures on one page.
%%Pages: 1
%%PageOrder: Ascend
%%BoundingBox: 0 0 595 842
%%EndComments
%%EndProlog
%%Page: 1 1

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%------ Figure (a) here.


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%------ Figure (b) here.


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%------ Figure (c) here.


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%------ Figure (d) here.


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%%Trailer
%%EOF