Dr. Shane English (IMAGE) The Ottawa Hospital Caption Dr. Shane English led the SAHARA trial, which compared liberal versus restrictive blood transfusion practices in patients with aneurysmal subarachnoid hemorrhage. Credit The Ottawa Hospital Usage Restrictions Only for use in stories about this research License Original content 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.