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Both options include provider supervision, 503A compounded medication sourced from a licensed pharmacy, dosing instructions, and follow-up
Acknowledgments Thank you to Suzanne Rankin for proofreading and reviewing the English
In addition, a 2013 systematic review by the same investigators identified only two small randomized, double-blind, placebo-controlled trials that examined the effect of vitamin C on the incidence of respiratory infection-induced asthma (214)
Importantly, functional B12 deficiency can sometimes coexist with high total B12 levels, especially in kidney disease, and may require additional testing with methylmalonic acid (MMA) or holotranscobalamin if deficiency is suspected clinically
If it lasts more than a week or is severe, then inform your doctor
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