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91% Have Low Vitamin D Levels in UK Cohort, 34% Severely Deficient; Efavirenz use is associated with severe Vitamin D deficiency in a large, ethnically diverse, urban UK HIV cohort
Is 7ng/ml of vitamin D3 low for an adult? I recently got a blood test and it was 7ng. My doctor was very concerned, but how would it affect me? - Quora
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