title: Tumor localization, dosimetry, simulation and treatment procedures in radiotherapy: the isocentric technique.
mesh_terms: D006801:Humans; D008433:Mathematics; D008722:Methods; D008961:Models, Structural; D009369:Neoplasms / Q000532:radiotherapy*; D011879:Radiotherapy Dosage; D011882:Radiotherapy, High-Energy / Q000295:instrumentation; D013997:Time Factors