They studied 200 patients with an average age of 60 and discovered that those on a low dose had double the reduction in knee pain of patients on higher doses.

他们研究了平均年龄为60岁的200名患者，发现在减少膝盖疼痛的效果上，那些少量服用鱼油的病患是大量服用的病患的两倍。

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In particular, women hoping to become pregnant are advised in many countries to take double the recommended dose of folic acid.

特别是想要小孩的女性。在很多国家，医生都建议她们摄入两倍于一般剂量的叶酸。

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Current WHO estimates suggest that the vaccine storage requirements would at least double if only single-dose presentations were used (WHO vaccine volume calculator, March 2011).

目前，世卫组织估计表明，如果仅提供单剂疫苗，那么疫苗的存储需求将至少是现在的两倍(世卫组织疫苗量计算工具，2011年3月)。

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So some women might have a single dose of these genes while others will have a double dose.

ECONOMIST: Genetics

No political movement driving funds to reduce the double dose of heart-related deaths among men.

WSJ: Guys Left Behind

The target in Wales is to see 95% of children receive a double dose of the vaccine.

BBC: Jab reminder after measles cases