| Filing Date | Form | Description | Filing Group | Downloads | | 04/17/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/17/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 04/04/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 03/26/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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| | 03/20/12 | 4 | Statement of changes in beneficial ownership of securities | 3,4,5 |
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