Kristopher Nissen

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PURPOSE Technological advances in radiation therapy (RT) delivery have the potential to reduce errors via increased automation and built-in quality assurance (QA) safeguards, yet may also introduce new types of errors. Intensity-modulated RT (IMRT) is an increasingly used technology that is more technically complex than three-dimensional (3D)-conformal RT(More)
A female child of healthy parents developed rotary nystagmus at the age of 15 months. Ophthalmoscopy disclosed incomplete optic atrophy. Blood tests, EEG and CT scans were normal. At 20 months progressive muscular weakness and wasting with limb-girdle distribution commenced, followed later by disturbance of gait. From muscle and nerve biopsy the diagnosis(More)
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