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Vitamins B, C and D are sexier and get more attention
Low dead-space syringes are available and worth the small additional cost for researchers who want maximum precision
Serum (the liquid portion of blood) is commonly used to test vitamin B12 and folate
A valid prescription is required from your doctor prior to B12 administration
Several commenters indicated they desired an enhanced focus on enforcement by CMS to ensure widespread compliance with the HPT rule in an expeditious and efficient manner
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