In parts of South America, vitamin-A deficiency is a serious health problem, especially among children.
在南美部分地区，缺乏维生素 A是一个严重的健康问题，尤其在儿童之中。
Vitamin D deficiency vs. child abuse: what do we know now and where do we go?
维生素D缺乏与儿童癖嗜：现在我们知道什么和我们应该去哪里？
Vitamin therapy in the absence of obvious deficiency. What is the evidence?
没有明显缺乏时的维生素疗法。证据是什么？
If a vitamin is absent from the diet, a specific deficiency may develop.
如果饮食中缺乏维生素，可能会导致某种缺乏疾病。
How can you find out if you have a vitamin deficiency?
如果您有维生素缺乏，您怎么能发现？
It is usually due to deficiency of vitamin d.
它通常是由于缺乏维生素d。
It also has a great effect on the deficiency of vitamin c, etc.
对维c等元素缺乏症也有很好疗效。
It also has a great effect on the deficiency of vitamin c, etc.
对维c等元素缺乏症也有很好疗效。
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