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Feb 15, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Feb 15, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Feb 15, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Jan 22, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Jan 15, 2013 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 18, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 18, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
May 18, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 05, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf  
Mar 05, 2012 4 Statement of changes in beneficial ownership of securities htmlhtml   pdfpdf