B-roll of co-corresponding authors (VIDEO) Northwestern University This video is under embargo. Please login to access this video. Caption B-roll of study authors Nathan Gianneschi and Dr. Kurt Lu on Northwestern University's campus. Credit Northwestern University Usage Restrictions Credit accordingly. 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.