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| 0001437749-12-005927.txt | 2012-06-06 20:05:07 | |
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| sigm-20120428.xml | 891149 | 2012-06-06 20:05:07 |
| sigm-20120428.xsd | 19281 | 2012-06-06 20:05:07 |
| sigm-20120428_cal.xml | 30451 | 2012-06-06 20:05:07 |
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| sigm-20120428_lab.xml | 110298 | 2012-06-06 20:05:07 |
| sigm-20120428_pre.xml | 93547 | 2012-06-06 20:05:07 |
| sigma_10q-042812.htm | 1247063 | 2012-06-06 20:05:07 |