| Filing | Description | Date Filed | View |
| 4 | Statement of changes in beneficial ownership of securities | 02/17/11 |
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| 4 | Statement of changes in beneficial ownership of securities | 02/17/11 |
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| 4 | Statement of changes in beneficial ownership of securities | 02/16/11 |
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| 4 | Statement of changes in beneficial ownership of securities | 02/14/11 |
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| SC 13G/A | An amendment to the SC 13G filing | 02/11/11 |
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| SC 13G/A | An amendment to the SC 13G filing | 02/10/11 |
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| 3 | Initial filing by director officer or owner of more than ten percent. | 02/07/11 |
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| 8-K | Report of unscheduled material events or corporate event | 02/07/11 |
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| SC 13G/A | An amendment to the SC 13G filing | 02/02/11 |
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| 8-K | Report of unscheduled material events or corporate event | 02/02/11 |
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