Catherine Bollard, M.B.Ch.B., M.D. (IMAGE) Children's National Hospital Caption This is Catherine Bollard, M.B.Ch.B., M.D., director of the Center for Cancer and Immunology Research at Children's National Hospital and the study's senior author Credit Children's National Hospital Usage Restrictions Please credit Children's National Hospital 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.