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However, high doses can still trigger unwanted symptoms in sensitive individuals
Needle sizing follows a flipped scale: a higher gauge number actually means a narrower shaft, so a 25-gauge needle is finer than a 21-gauge one
The most common cause of vitamin B12 deficiency is a lack of dietary intake of the nutrient
[15] [16] Tests may include full blood count, serum B12 levels, anti-intrinsic factor antibodies (to diagnose pernicious anaemia), and sometimes methylmalonic acid or homocysteine levels when the diagnosis is uncertain
