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Phase II Study of a Multi center Randomized Controlled Trial to Evaluate Oral Vitamin B12 Treatment for Vitamin B12 Deficiency After Total Gastrectomy in Gastric Cancer Patients Anticancer Research Vitamins after Bariatric Surgery: Choosing the Right Supplements What You Need to Know About Vitamin B12 Duane NP Vitamin B12 supplementation post gastrectomy: a service closed loop audit at St. James's Hospital, Dublin PMC
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