Dyer (IMAGE) St. Jude Children's Research Hospital Caption Michael Dyer, Ph.D., chair of the St. Jude Department of Developmental Neurobiology Credit St. Jude Children's Research Hospital Usage Restrictions None License Licensed 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.