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Sublingual B12, which bypasses the gastrointestinal tract, is the least invasive and potentially most cost-effective option, especially for individuals with impaired absorption, making it an attractive alternative for long-term and patient-friendly management (Vidal-Alaball et al., 2006)
Oh JY, Barrett-Connor E, Rancho Bernardo Study G
Neuroblastoma: an evaluation of its natural history and the effects of therapy, with particular reference to treatment by massive doses of vitamin B12
For people with malabsorption, injections are often the only practical route to restore normal physiology
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