Upon analysis we found that 56% were only on at least 50% of the recommended backgrounddose.
经分析我们发现，仅56%的患者在接受所推荐背景剂量的至少50%。
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For most people more than half of their natural background radiation dose comes from radon, a radioactive gas that can accumulate in homes, schools and workplaces.
Summary of Background Data. High dose methylprednisolone sodium succinate (MPSS) for the patients with acute spinal cord injury has been considered standard treatment in the several countries.