James Ragan, front, has his vitals checked by Dr. Stephen Gottschalk, before getting an infusion injection of immune cells, Wednesday, Aug. 8, 2012, in Methodist Hospital’s Center for Cell and Gene Therapy in Houston. Ragan, a Rice University student diagnosed with bone cancer at 13, is getting an experimental immunotherapy at Methodist Hospital, an infusion of his own stem cells previously removed and regrown. (AP Photo/Houston Chronicle, Nick de la Torre) MANDATORY CREDIT