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CHANG,WEI-CHENG: r001-011
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CHANG,WEI-CHENG: r001-014
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CHANG,WEI-CHENG: r001-020
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CHANG,WEI-CHENG: r001-030
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CHANG,WEI-CHENG: r001-005
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CHANG,WEI-CHENG: r001-006
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CHANG,WEI-CHENG: r001-008