title: Independent Phantom Irradiation Is Both Necessary and Cost Effective for Clinical Trial Credentialing.
mesh_terms: D002986:Clinical Trials as Topic / Q000592:standards*; D006801:Humans; D009369:Neoplasms / Q000532:radiotherapy*; D011785:Quality Assurance, Health Care / Q000592:standards*; D058996:Quality Improvement / Q000592:standards*; D012107:Research Design / Q000592:standards*