... shown a need to update our system for chemicals regulation. There is current research being conducted concerning vitamin D intake and asthma. A study published by the American Journal of Respiratory and Critical Care Medicine, showed lower levels of ...
http://www.examiner.com/article/asthma-vitamin-d-research-and-chemical-exposure
http://www.examiner.com/article/asthma-vitamin-d-research-and-chemical-exposure
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