pwrfid asked:
I have been reading a lot on Vitamin D and its potentially wide impact on human health. I am wondering if there is any way people can measure their blood Vitamin D levels without resorting to the clinical laboratory?
I have been reading a lot on Vitamin D and its potentially wide impact on human health. I am wondering if there is any way people can measure their blood Vitamin D levels without resorting to the clinical laboratory?
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