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| 0001415889-16-005184-index.html | 2016-03-21 14:03:31 | |
| 0001415889-16-005184.txt | 2016-03-21 14:03:31 | |
 0001415889-16-005184-xbrl.zip | 102493 | 2016-03-21 14:03:31 |
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| ptrc-20160131.xsd | 38261 | 2016-03-21 14:03:31 |
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| report.css | 2767 | 2016-03-21 14:03:31 |
| Show.js | 1410 | 2016-03-21 14:03:31 |