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PURPOSE This study directly compares four dosimetric techniques for balloon-based partial breast brachytherapy: single source, standard line source, and both forward planned and inverse planned multilumen (ML). A standard line source plan is presented to be used in a single catheter or as a starting point for forward planned ML. METHODS AND MATERIALS The(More)
Complex multiple choice (CMC) items, a type of multiple choice item used extensively in the health sciences, were compared with multiple response (MR) and multiple true-false (MTF) items. The results indicated MTF to be easier, more reliable and more valid than CMC items; therefore, test-makers such as the National Board of Medical Examiners who use CMC(More)