Dr. Daniel Woo (IMAGE) University of Cincinnati Caption Dr. Daniel Woo was the principal investigator of the nationwide study looking into risk factors for ICH strokes across racial and ethnic groups. Credit Ron Rack Usage Restrictions N/A 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.