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Vitamin B12 deficiency Having trouble absorbing vitamin B12 from food, lacking intrinsic factors (for example, as a result of pernicious anaemia), having gastrointestinal surgery, taking certain medications for an extended period of time (such as metformin or proton pump inhibitors), and nutritional deficiencies are all causes of vitamin B12 deficiency
[5] It is also the most abundant excitatory neurotransmitter in the vertebrate nervous system
They can also reduce your risk of flu complications, which is why these drugs are often recommended for people who are at a high risk, such as children, older adults, and people with certain preexisting conditions
Lactate is preferentially used by the meningococcus as a carbon source
For most beginners, the goal isn't to hit that top dose
10.3322/caac.21492 21 BrittonG.Liaaen-JensenS.PfanderH
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