| Filed On | Filing |
|---|---|
| 31 Jan 2020 | AMENDMENT NO. 1 |
| 14 Sep 2015 | REF SECURITIES & CO. LLP SC13G/A |
| 26 Jan 2015 | ARRHYTHMIA RESEARCH TECHNOLOGY INC. SC 13G/A |
| 12 May 2014 | SC 13G/A |
| 09 Apr 2009 | DOC ONE |
| 18 Apr 2007 | FORM 13G/A FILED BY HEALTHINVEST, ISSUER ARRHYTHMIA, 2007-04-18 |
| 12 Feb 2007 | FORM 13G/A FILED BY HEALTHINVEST, ISSUER ARRHYTHMIA, 2007-02-12 |
| 26 Dec 2006 | AMENDED 13G FILING 2006 |
| 26 Dec 2006 | AMENDED 13G FILING 2003-2006 |
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