At present prevention function of B vitamins group for PD is still not very clear.

目前对B族维生素对帕金森症预防作用尚不是很清楚。

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The utility model relates to insect prevention device, especially a window screen with insect prevention function.

本实用新型涉及昆虫防护作用装置，特别是一种具有昆虫防护作用的纱窗。

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The electrical water kettle has the dry burning prevention function so long as added with a few of parts, and has simple structure and low cost.

该电水壶，只要加装少量零件，就具备了防干烧功能，结构简单，成本低。

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Very recently the Institute of Medicine of the prestigious U.S. National Academy of Science published a review of the scientific literature and noted that vitamin D may be linked to heart disease, immune function, cancer prevention and diabetes.

CNN: Do vitamins help against type 2 diabetes?

Qualifying medical expenses include the costs of diagnosis, cure, mitigation, treatment, or prevention of disease, and the costs for treatments affecting any part or function of the body.

FORBES: Ask TheTaxgirl: Deducting The Cost Of Birth Control