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pre-Chicago rate
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Ref: Reg
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Ref: 1553, TCP2 John O'Grady
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Ref: 1616
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Ref: 1596, Early bird registration fee - $65 (PDP10)
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Ref: 1647, Paid by John O'''Grady., Early Bird
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Ref: 1978
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Ref: 2124
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Ref: 2232
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