Patient Waiting Room (IMAGE) Children's Hospital of Philadelphia Caption Jonathan Nagrant arrives for proton treatment, entering the Children's Hospital of Philadelphia Cancer Center waiting room within the Roberts Proton Therapy Center. The Roberts Center is the only proton facility conceived with pediatric patients in mind from the earliest planning stages. Credit The Children's Hospital of Philadelphia 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.