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Using it in multi-dose scenarios is a frequent source of avoidable contamination in research labs
Vitamin B12, Fact Sheet for Health Professionals, National Institutes of Health, Office of Dietary Supplements Common questions about hydroxocobalamin, NHS (National Health Service), Hunt A, Harrington D, Robinson S
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A well of this type makes it possible to measure the groundwater elevation and permits water sampling to test the composition of the groundwater
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