The problem with pernicious anemia is that you can no longer absorb the b12 from your digestive system. The necessary intrinsic factor is no longer produced because the cells that produce it in the stomach have been destroyed. You could take twenty high dose B12 tablets every day and you probably would not absorb enough of it to survive. That is why it has to be injected. Luckily a fully functioning liver stores enough for about 4 years, but the symptoms start showing up a good while before you kick off. The nervous system can recover if it is caught early. Permanent damage to the CNS can occur it you wait too long.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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