Roland E Stevens

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PURPOSE To determine lateral scatter penumbra margins for treatments of small lesions with electrons. These margins could be different for small and normal-sized cutouts due to the lack of lateral scatter equilibrium when the cutout dimension is disproportionally small for a given electron energy. METHODS Round cutouts with diameters of 2 and 3 cm were(More)
4666 Backround: In the absence of randomized prospective trials the optimal therapy for localized prostate cancer (PC) remains to be proven. Decisions regarding definitive therapy {watchful waiting (WW), radical prostatectomy (RP), external beam radiotherapy (EXRT), brachytherapy (BT), EXRT+BT} becomes one of personal preference potentially influenced by(More)
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