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Chronic neck pain is a common reason for doctor visits in the United States. This diagnosis can be evaluated through patient history, physical examination, and judicious use of radiographs. However, possible inappropriate magnetic resonance imaging (MRI) ordering persists. We hypothesized that no difference in ordering practices, ordering appropriateness, and subsequent intervention would be appreciated...
Publications relating radiation toxicity of the optic nerves and chiasm to quantitative dose and dose–volume measures were reviewed. Few studies have adequate data for dose–volume outcome modeling. The risk of toxicity increased markedly at doses >60 Gy at ≈1.8 Gy/fraction and at >12 Gy for single-fraction radiosurgery. The evidence is strong that radiation tolerance is increased with a reduction...
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