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Some people also experience memory issues and trouble concentrating, which we sometimes call brain fog
Historically, the covalent carboncobalt bond is one of the first examples of carbon-metal bonds to be discovered in biology
Clinically significant vitamin B 12 deficiency and megaloblastic anemia are unlikely, unless these drug therapies are prolonged for two or more years, or if in addition, the person's dietary intake is below recommended levels
That extra step can prevent confusion between micrograms, milliliters, and total vial contents
Gastrointestinal surgery can also affect B12 absorption
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