Portal image verification is one of key QA procedures for implementation of accurate radiotherapy.

照射野验证是实施精确放射治疗质量保证(QA)的关键步骤之一。

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Portal image verification is one of key QA procedures for implementation of accurate radiotherapy.

照射野验证是实施精确放射治疗质量保证(QA)的关键步骤之一。

youdao