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Specifically, eligible studies included participants (P) with a confirmed diagnosis of vitamin B12 deficiency, interventions (I) involving oral or sublingual vitamin B12 administration, comparators (C) using intramuscular supplementation, and outcomes (O) reporting changes in serum vitamin B12 or homocysteine levels

male factor infertility accounts for about 30% of cases

Instructions Consumption of alcohol should be avoided while treatment with Me 12 500 MCG Injection due to increased risk of dizziness and drowsiness

Temperature excursions during shipping do not compromise unopened vials as long as they stay below 30C