Case series and case reports suggest that the LMA can provide an effective rescue airway during resuscitation if both BMV and ETT have been unsuccessful.

有个案系列和个案报告指出喉头罩在面罩苏醒球和气管插管两者皆无效时，可以建立有效的气道。

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The quantum leap in BMV service has been achieved with 20% fewer agency employees.

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She said she expects it to beat the BMV benchmark.

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