Gregory Armstrong, St. Jude Children's Research Hospital (image) St. Jude Children's Research Hospital Share Print E-Mail Caption Gregory Armstrong, M.D., of St. Jude Children's Research Hospital, led a recent study that shows the health gap between adult survivors of childhood cancer and siblings widens with age. Credit St. Jude Biomedical Communications Usage Restrictions Use with appropriate caption and credit. Share Print E-Mail 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.