53 Low B 12 concentrations in the body may be present in different pathophysiological situations, including pregnancy, old age, smoking, and comorbidities such as hypertension, diabetes mellitus, pancreatic insufficiency, autoimmune gastritis, gastrectomy or gastric bypass, diseases or resection of the ileum, bacterial overgrowth, celiac disease, inflammatory bowel disease, or uremia-related malnutrition
#12400016, Gibco, Thermo Fisher Scientific) containing 10% fetal bovine serum (FBS
10.1007/s13346-023-01473-x 221 WilsonS
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