de Almeida, C E Comparison of electron beams from the Siemens betatron and the Sagittaire linear accelerator. [electronic resource] - Radiology May 1974 - 439-45 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0033-8419 Standard No.: 10.1148/111.2.439 doi Subjects--Topical Terms: ElectronsRadiotherapy--instrumentationRadiotherapy DosageRadiotherapy, High-Energy