The motor carrier administration is already considering a rule to tighten its standards for medical certification of commercial drivers.

汽车运输安全管理局已在考虑将商业驾驶的医师证明标准规定得更紧。

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WHO standard verbal autopsy questionnaires are recommended to improve the comparability of causes of death from systems without medical certification of deaths.

建议使用世卫组织的死因推断标准来改善那些没有医学死亡证明的系统的死亡原因的可比性。

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Methods: Combining with retrospective investigation, the relevant data were obtained from medical certification for residents' death reported by surveillance of all kinds of disease.

方法：“居民死亡医学证明书”，结合回顾性调查，获取相关数据。

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This keeps a lot of Democratic politicians from supporting even the most basic, common-sense reforms, like your medical expert certification of all cases.

FORBES: GOP Fights With Itself Over Medical Malpractice Reform

They have testified to performing ultrasound scans, giving intravenous drugs and helping with abortions, even though they lacked medical training or certification.

BBC: Philadelphia abortion doctor tried on 'baby murder' case

Technologists hold a bachelor's degree in medical technology or life sciences and certification from a registered board.

FORBES: 13. Medical/Clinical Laboratory Technologist