In other cases, "conventional" medicine is only needed in emergencies or when the safer non-invasive, non-pharmaceutical methods fail.

在其它情况下，常规医疗仅在紧急情况下和安全地非侵入式的、非药物的疗法失败的情况下被使用。

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In other cases, "conventional" medicine is only needed in emergencies or when the safer non-invasive, non-pharmaceutical methods fail.

在其它情况下，常规医疗仅在紧急情况下和安全地非侵入式的、非药物的疗法失败的情况下被使用。

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