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How Much B12 Should a Bariatric Patient Take? Vitamin B12 Absorption Post Gastrectomy Human STEAM Proximal Gastrectomy Is Associated with Lower Incidence of Anemia and Vitamin B12 Deficiency Compared to Total Gastrectomy in Patients with Upper Gastric Cancer 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
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