An initial section considers technical aspects and issues, including those relating to radiation dose and use of contrast material.
初始段考虑技术方面和问题，包括对比材料的与辐射剂量和使用有关系的那些。
An initial section considers technical aspects and issues, including those relating to radiation dose and use of contrast material.
初始段考虑技术方面和问题，包括对比材料的与辐射剂量和使用有关系的那些。
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