Adaptive radiotherapy 1 Anatomical variations 1 Article 1 Benchmarking 1 Diseases 1 Dose-volume histograms 1 Dosimetry 1 Electronic portal images 1 Electronic portal imaging devices 1 Humans 1 Planning target volumes 1 Radiometry 1 Radiotherapy 1 Radiotherapy Dosage 1 Radiotherapy Planning, Computer-Assisted 1 Radiotherapy, Intensity-Modulated 1 RayStation scripting 1 Simulated environment 1 Transit dosimetry 1 Volumetric modulated arc therapy 1 Volumetric modulated arc therapy (VMAT) adaptive radiation 1 benchmarking 1 cancer radiotherapy 1 clinical article 1 correlational study 1 dose volume histogram 1 dosimetry 1 head and neck cancer 1 human 1