Cerebellar Neoplasms/economics; Cerebellar Neoplasms/radiotherapy; Hearing Loss/economics; Medulloblastoma/economics; Medulloblastoma/radiotherapy; Quality of Life; Radiation Injuries/economics; Cerebellar Neoplasms/mortality; Child; Cochlea/radiation effects; Cost-Benefit Analysis/classification; Cost-Benefit Analysis/economics; Female; Health Care Costs/statistics & numerical data; Hearing Loss/mortality; Hearing Loss/prevention & control; Humans; Japan; Male; Medulloblastoma/mortality; Models, Economic; Organ Sparing Treatments/economics; Organ Sparing Treatments/methods; Organs at Risk/radiation effects; Proton Therapy; Radiation Injuries/prevention & control; Radiation Protection/economics; Radiotherapy Dosage; Radiotherapy, High-Energy/economics; Radiotherapy, High-Energy/mortality; Retrospective Studies; Survival Rate; Treatment Outcome

cost effectiveness; hearing loss; medulloblastoma; proton therapy