How do you consider SBRT relative to other emerging therapies for pediatric sarcomas, such as proton therapy or immunotherapy, in terms of efficacy and safety?  

Treatment paradigms for pediatric malignancies have evolved through group trials over the past 5 decades, both in the US (e.g., COG) and abroad (SIOP). Sequential improvements have been made over the years to the quality of radiation for both pediatric and young adults, a population at risk for majo...