Radiotherapy Dosage radiotherapy dosage 11 Humans 8 human 8 Article 7 Radiotherapy, Intensity-Modulated 7 intensity modulated radiation therapy 7 procedures 6 radiation response 6 Radiotherapy Planning, Computer-Assisted 5 dosimetry 5 radiotherapy planning system 5 clinical article 4 male 4 planning target volume 4 Female 3 Male 3 Radiotherapy 3 adult 3 adverse event 3 cancer radiotherapy 3 controlled study 3 female 3 organs at risk 3 volumetric modulated arc therapy 3 Adult 2 Aged 2 Dose-Response Relationship, Radiation 2 Dosimetry 2 Head and Neck Neoplasms 2