David Yuh, John Hopkins University (IMAGE) Johns Hopkins University Caption Cardiac surgeon David Yuh controls the da Vinci robotic surgical system as computer scientists Izhak Shafran and Gregory Hager observe. Credit Will Kirk/JHU 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.