vitamin a

Vitamin A deficiency is a problem especially in Africa and Southeast Asia .

维生素a缺乏症是个普遍问题，在非洲和东南亚尤为严重。

Sweet potatoes contain fiber , vitamin A and calcium .

甜土豆富含纤维，维生素a和钙。

Liver and kidney are particularly rich in vitamin A

肝脏和肾脏的维生素A含量尤其丰富。

There was no positive evidence that any birth defects had arisen as a result of Vitamin A intake .

没有确凿证据证明，摄取维生素A会导致出生缺陷。

It contains vitamin A and vitamin C.

它里面含维生素A和维生素C。

The yellow and orange stone fruits such as peaches are high in the carotenoids we turn into vitamin A and which are antioxidants ．

果核呈黄色、橙色的水果，比如桃子，富含能被我们转化成维生素A的类胡萝卜素，那是一种抗氧化剂。

Vitamin A , which helps maintain eyesight and support lung health .

维生素A：有助于保持视力、增进肺部健康；

Effect of vitamin A supplementation on growth and development of children

补充维生素A对儿童生长发育的影响

Conclusion Vitamin A can improve the immune function of infants .

结论维生素A应用后可以提高小儿免疫功能。

Research advance in stability of Vitamin A in dairy products

乳制品中维生素A稳定性的研究进展

Serum Vitamin A Levels in Aged Patients with Different Kinds of Chronic Diseases

10种老年慢性病患者血清维生素A水平的调查分析

Assessment methods and evolution on vitamin A status

维生素A营养状况的评价方法

Influence of zinc deficiency on metabolism of vitamin A in rats

缺锌对大鼠维生素A代谢的影响

Effect of vitamin A deficiency on immunological functions of children

维生素A缺乏对儿童免疫功能的影响

Effect of vitamin A on development of cardiac cushion

维生素A对心内膜垫胚胎发生的影响

Zinc and vitamin A are necessary for the normal function of the immune system .

锌和维生素A作为人体必需营养素已被证实具有增强免疫力，抵抗感染的作用。

Role of vitamin A during the pulmonary surfactant development

维生素A在肺表面活性物质生成中的作用

Vitamin A deficiency in patients with a remote history of intestinal surgery

远期肠道手术史患者并发维生素A缺乏症

Comparison of indices of vitamin A status in children with chronic liver disease

对慢性肝病患儿体内维生素A水平的比较

Influence of vitamin A intake of different dosage on DNA damage in rats

不同剂量维生素A摄入对大鼠DNA损伤的影响

Effect of vitamin A deficiency on the fertility of rats

维生素A缺乏对大鼠生育力的影响

The vitamin A level in serum of children aged 3 years were relatively low .

3岁儿童血清维生素A水平较低。

Effect of Vitamin A Deficiency on Liver Iron Metabolism and Its Mechanic Research

维生素A缺乏对肝脏铁代谢的影响及机制研究

A study on a suitable dosage of vitamin A in wound healing

维生素A促进伤口愈合的适宜剂量的研究

Investigation of Vitamin A Level of Children in Tangshan

唐山市儿童血清维生素A水平调查

Study on assay determination of vitamin a soft capsules

维生素A胶丸含量测定方法的研究

Study on serum vitamin a , beta-carotene and immune function in lung cancer

肺癌患者血清维生素A及β-胡萝卜素水平与免疫功能关系的研究

Influence of Food Processing on the Quality of Fortified Edible Oil with Vitamin A

食物加工方式对维A强化食用油品质的影响

Display Measurement of dark adaptation showed that Vitamin A was deficient .

暗适应测定显示有VA缺乏。

Research on method for measurement of the dynamic viscosity of vitamin A palmitate gel

维生素A棕榈酸酯凝胶动力黏度测定方法的研究