They are used as a routine preventative treatmet of venous stasis.

使用这种袜子已成为预防静脉郁滞的常规措施.

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They are believed to be caused by venous stasis resulting from nasal congestion.

这些黑眼圈是由于鼻塞导致静脉淤血所致.

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Therefore, the venous stasis may be a major factor of neurogenic intermittent claudication.

因此, 静脉停滞可能是神经原性间歇性跛行的主要原因.

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