Rule Identifies Women Who Have Low Risk of Vein Blood Clot Recurrence (image) Ottawa Hospital Research Institute Share Print E-Mail Caption A Canadian-led research group has developed and validated a rule that could let half of women with unexplained vein blood clots stop taking blood thinners for life. These findings were published in The BMJ. Credit The Ottawa Hospital Usage Restrictions This image can only be used in publications related to this research study Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.