Probability axioms. In Kolmogorov's probability theory, the probability P of some event E, denoted P ( E ) {\displaystyle P(E)} , is usually defined such that P satisfies the Kolmogorov axioms, named after the Russian mathematician Andrey Kolmogorov, which are described below.
Pernicious anemia due to lack of intrinsic factor is not preventable. Vitamin B12 deficiency due to other causes may be prevented with a balanced diet or with supplements. Pernicious anemia can be easily treated with either injections or pills of vitamin B12. If the symptoms are severe, injections are typically recommended initially.
Fatigue and depression can result from the depletion of B vitamins. Many women with anemia are deficient in three B-complex vitamins: folic acid, pyridoxine (vitamin B6), and vitamin B12. All three are needed for normal growth and maturation of red blood cells. Their deficiency leads to anemia and fatigue.