Erratum to: Santos M, Oliveira e Silva LF, Kohler HF, et al. Health-Related Quality of Life Outcomes in Head and Neck Cancer: Results From a Prospective, Real-World Data Study With Brazilian Patients Treated With Intensity Modulated Radiation Therapy, Conformal and Conventional Radiation Techniques. Int J Radiat Oncol Biol Phys 2021;109:485-494