title: The evolution of proton beam therapy: insights from early trials and tribulations.
authors.affiliation: Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Melody
authors.initials: M
authors.lastname: Ju
authors.affiliation: Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania.
authors.forename: Abigail T
authors.initials: AT
authors.lastname: Berman
authors.affiliation: Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania; Department of Radiation Oncology, University of Pennsylvania, Philadelphia, Pennsylvania. Electronic address: vapiwala@uphs.upenn.edu.
authors.forename: Neha
authors.initials: N
authors.lastname: Vapiwala
mesh_terms: D003362:Cost-Benefit Analysis; D017357:Cyclotrons / Q000191:economics / Q000295:instrumentation; D005378:Financial Support; D005544:Forecasting; D006801:Humans; D011050:Policy Making; D061766:Proton Therapy / Q000191:economics / Q000295:instrumentation / Q000639:trends; D018787:Radiation Oncology / Q000458:organization & administration