Distinguished Professor Hiroki Shirato (IMAGE) Hokkaido University Caption Distinguished Professor Hiroki Shirato Credit Faculty of Medicine, Hokkaido University Usage Restrictions This image is copyrighted but may be used to report this release if credited as instructed. 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.