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Examples throughout chemistry include: riboflavin (bright yellow) potassium ferricyanide (deep red) copper sulphate (blue) Colour reflects molecular structurenot necessarily contamination
pylori infection all impair B12 absorption Heavy alcohol users alcohol damages gastric mucosa and impairs hepatic B12 storage If you belong to two or more of these groups, assume you need B12 monitoring regardless of symptoms
The verenkuva is usually abnormal too, with a raised white cell count, platelet count or hematocrit
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