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Because B12 injections are perceived as low-stakes, some facilities devote minimal attention to screening, monitoring, and emergency readiness

Strbe et al., 2021), intratracheal alcohol instillation (Stancic-Rokotov et al., 2001a

Atrophic gastritis involves inflammation and thinning of the stomach lining, which can impair the production of intrinsic factor and hinder B12 absorption