affiliation not provided to SSRN
head and neck cancer, Radiation-Induced Oral Mucositis, Tissue Retraction Device, Intraoral Splint, Intensity-Modulated Radiotherapy (IMRT), Carbon Ion Radiotherapy (CIRT), 3D Printing in Radiotherapy, Patient-Reported Outcomes (PROs), Oral Toxicity, Organ-at-Risk (OAR) Sparing