title: Erratum to: Mathilda L. Bongers, Veerle M.H. Coupé, Dirk De Ruysscher, Cary Oberije, Philippe Lambin, and Cornelia A. Uyl-de Groot. Individualized Positron Emission Tomography-Based Isotoxic Accelerated Radiation Therapy Is Cost-Effective Compared With Conventional Radiation Therapy: A Model-Based Evaluation. Int J Radiat Oncol Biol Phys 2015;91:857-865.