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| 0001432093-11-000699.txt | 2011-10-31 17:49:56 | |
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| vertex10q093011.htm | 942372 | 2011-10-31 17:49:56 |
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| vtnrpk-20110930_pre.xml | 66836 | 2011-10-31 17:49:56 |