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3/28/2013
| 4 | Statement of Changes of Beneficial Ownership |
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3/28/2013
| 4 | Statement of Changes of Beneficial Ownership |
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3/18/2013
| SC 13G/A | Amended Statement of Beneficial Ownership |
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3/13/2013
| 4 | Statement of Changes of Beneficial Ownership |
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3/12/2013
| 424B5 | Prospectus Filed Pursuant to Rule 424 |
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3/11/2013
| S-3ASR | Automatic shelf registration statement of securities of well-known seasoned issuers |
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2/22/2013
| DEFA14A | Definitive Proxy Statement |
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2/22/2013
| DEF 14A | Definitive Proxy Statement |
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2/12/2013
| SC 13G/A | Amended Statement of Beneficial Ownership |
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2/1/2013
| SC 13G/A | Amended Statement of Beneficial Ownership |
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1/31/2013
| SC 13G/A | Amended Statement of Beneficial Ownership |
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1/30/2013
| SC 13G | Statement of Beneficial Ownership |
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