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After 48 h, the medium was removed, 400 l of ice-cold 80% methanol was added and the cells were incubated at 80 C for 15 min
Whenever people find it difficult to maintain adequate vitamin B12 levels, either because they have an absorption problem or follow a vegan or vegetarian diet, B12 supplements often come to their aid
If there is any doubt about the integrity of a prepared solution, it must be discarded
obesity rates hovering around 40% , even modest adoption among eligible employees could lead to a sharp rise in prescription spending
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