How Blood Test Tubes Can Change Your Vitamin D Results
Scientists discovered that the type of tube used to collect blood for vitamin D testing can actually change the results you get. Researchers tested 20 …
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Scientists discovered that the type of tube used to collect blood for vitamin D testing can actually change the results you get. Researchers tested 20 …
Read MoreResearchers discovered that common vitamin D blood tests may give confusing results because they're picking up different forms of vitamin D that shouldn't be …
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