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Efficacy of different routes of vitamin B12 supplementation for the treatment of patients with vitamin B12 deficiency: A systematic review and network meta-analysis
S., Amaro, A., & Wadden, T
Promotes Healthy Red Blood Cell Formation: Adequate B12 levels are important for proper red blood cell development and for supporting circulation
PAS have useful leaflets/articles that PAS members can print out and pass on to GPs eg "Treatment is for Life" pernicious-anaemia-society
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