Headshot of Guo-Ping Shi (IMAGE) Brigham and Women's Hospital Caption Senior author Guo-Ping Shi, ScD, a principal investigator in the Brigham’s Division of Cardiovascular Medicine Credit Guo-Ping Shi Usage Restrictions Reporters are free to use this image in coverage of the Developmental Cell paper 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.