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    31 Jul 2012
    02:48 GMT
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    Maybe just a little new Posted by barrykauffman on 31 Jul 2012 at 02:48 GMT
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    30 Jul 2012
    15:09 GMT
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    Is this new? Posted by crusio on 30 Jul 2012 at 15:09 GMT
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    26 Jul 2012
    02:49 GMT
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    Use of a denominator Posted by NialW on 26 Jul 2012 at 02:49 GMT