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We dont just test for purity
First, saline has no preservative same problem as sterile water for multi-dose use
In cases of deficiency: anaemia, digestive, neurological and psychological disorders Anaemia, characterized by insufficient iron in the blood, occurs frequently in people with a vitamin B12 deficiency
then 50 l/well of a corresponding HRP-Conjugated secondary antibody in PBST plus 1% milk was added and incubated at room temperature for 1 h
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